{"title":"Tube - 316L Stainless","description":"\u003cp\u003eOur selection of \u003cstrong\u003e316L Stainless Tube\u003c\/strong\u003e is built for \u003cstrong\u003emarine exhaust\u003c\/strong\u003e and \u003cstrong\u003esanitary\u003c\/strong\u003e applications, where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to saltwater and chlorides than 304 stainless, and the same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e for sanitary process systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMarine wet exhaust, risers, mixing sections, and generator exhaust\u003c\/li\u003e\n\u003cli\u003eFood, beverage, brewing, dairy, and clean-in-place (CIP) process lines\u003c\/li\u003e\n\u003cli\u003eHigh quality 316L Stainless Steel; ASTM A270, 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID finish (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with outside diameters from 0.500\" to 6.000\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuild a complete 316L system with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eLooking for sanitary fittings? Visit our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, for a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and 316L sanitary tube.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.aceraceparts.com\/#organization\",\"name\":\"Ace Race Parts\",\"url\":\"https:\/\/www.aceraceparts.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/www.aceraceparts.com\/cdn\/shop\/files\/ARP-Brand-Logo-Final-A_2024.png?v=1721290912\"},\"image\":\"https:\/\/www.aceraceparts.com\/cdn\/shop\/files\/ARP-Brand-Logo-Final-A_2024.png?v=1721290912\",\"sameAs\":[\"https:\/\/facebook.com\/aceraceparts\",\"https:\/\/instagram.com\/aceraceparts\"],\"contactPoint\":{\"@type\":\"ContactPoint\",\"telephone\":\"+1-844-223-7223\",\"contactType\":\"customer service\"}},{\"@type\":\"LocalBusiness\",\"@id\":\"https:\/\/www.aceraceparts.com\/#localbusiness\",\"name\":\"Ace Race Parts\",\"url\":\"https:\/\/www.aceraceparts.com\/\",\"image\":\"https:\/\/www.aceraceparts.com\/cdn\/shop\/files\/ARP-Brand-Logo-Final-A_2024.png?v=1721290912\",\"telephone\":\"+1-844-223-7223\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"8108 River Dr SE, STE 106\",\"addressLocality\":\"Olympia\",\"addressRegion\":\"WA\",\"postalCode\":\"98501\",\"addressCountry\":\"US\"},\"parentOrganization\":{\"@id\":\"https:\/\/www.aceraceparts.com\/#organization\"}},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.aceraceparts.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Tube - 316L Stainless\",\"item\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless\"}]},{\"@type\":\"CollectionPage\",\"@id\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless#collectionpage\",\"url\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless\",\"name\":\"Tube - 316L Stainless\",\"headline\":\"316L Stainless Steel Tube for Marine Exhaust \u0026 Sanitary Systems\",\"description\":\"A collection of 316L stainless steel tube in 4-foot lengths for marine exhaust systems and sanitary process applications, manufactured to ASTM A270 and 3-A Certified with a polished OD\/ID finish.\",\"publisher\":{\"@id\":\"https:\/\/www.aceraceparts.com\/#organization\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless#breadcrumb\"},\"mainEntity\":{\"@id\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless#productcollection\"}},{\"@type\":\"ProductCollection\",\"@id\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless#productcollection\",\"name\":\"Tube - 316L Stainless\",\"description\":\"A collection of PNW Sanitary 316L stainless steel tube for marine exhaust and sanitary systems, ASTM A270 and 3-A Certified, polished OD\/ID, available in 4-foot lengths from 0.500\\\" to 6.000\\\" OD.\",\"url\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless\",\"provider\":{\"@id\":\"https:\/\/www.aceraceparts.com\/#organization\"},\"includesObject\":{\"@type\":\"TypeAndQuantityNode\",\"url\":\"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless\",\"typeOfGood\":[{\"@type\":\"Product\",\"name\":\"0.500\\\" OD x 16ga (0.065\\\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length\",\"url\":\"https:\/\/www.aceraceparts.com\/products\/0-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/1c2ecc5d-2449-424d-b862-206a12b71764.jpg?v=1793727446\",\"sku\":\"PNW-20002-316L\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PNW Sanitary\"},\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"39.95\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"}},{\"@type\":\"Product\",\"name\":\"0.750\\\" OD x 16ga (0.065\\\") Round Tube - 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Polished OD\/ID - 316L Stainless - 4 Foot Length\",\"url\":\"https:\/\/www.aceraceparts.com\/products\/2-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/78d00edb-6204-43c1-a1eb-6519cfae9792.jpg?v=1793727448\",\"sku\":\"PNW-20032-316L\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PNW Sanitary\"},\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"83.95\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"}},{\"@type\":\"Product\",\"name\":\"2.500\\\" OD x 16ga (0.065\\\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length\",\"url\":\"https:\/\/www.aceraceparts.com\/products\/2-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/3eb48f28-78a2-4000-af63-b609dcbb2e7d.jpg?v=1793727447\",\"sku\":\"PNW-20044-316L\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PNW Sanitary\"},\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"99.95\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"}},{\"@type\":\"Product\",\"name\":\"3.000\\\" OD x 16ga (0.065\\\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length\",\"url\":\"https:\/\/www.aceraceparts.com\/products\/3-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/e93c9548-e901-41e1-8721-a11be9ac1395.jpg?v=1793727444\",\"sku\":\"PNW-20052-316L\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PNW Sanitary\"},\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"110.95\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"}},{\"@type\":\"Product\",\"name\":\"4.000\\\" OD x 14ga (0.083\\\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length\",\"url\":\"https:\/\/www.aceraceparts.com\/products\/4-000-od-x-14ga-0-083-round-tube-polished-od-id-316l-stainless-4-foot-length\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/d662ea70-23c7-421b-bd8c-bac4464ffb20.jpg?v=1793727446\",\"sku\":\"PNW-20064-316L\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PNW Sanitary\"},\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"175.95\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\"}},{\"@type\":\"Product\",\"name\":\"6.000\\\" OD x 14ga (0.083\\\") Round Tube - 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Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e Visit our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, for 316L sanitary tube, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44375666163775,"sku":"PNW-20074-316L","price":299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/1bc2e577-7c87-4a38-b104-d7a7c8d0241b.jpg?v=1793655543"},{"product_id":"3-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"3.000\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/3-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383930679359,"sku":"PNW-20052-316L","price":110.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/e93c9548-e901-41e1-8721-a11be9ac1395.jpg?v=1793727444"},{"product_id":"1-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"1.500\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/1-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383930712127,"sku":"PNW-20016-316L","price":66.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/d5e227f3-cfad-4309-9447-474a87044093.jpg?v=1793727445"},{"product_id":"0-750-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"0.750\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/0-750-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383930777663,"sku":"PNW-20003-316L","price":42.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/b419262e-ee6f-4685-9517-3a528acf2d38.jpg?v=1793727445"},{"product_id":"6-000-od-x-12ga-0-109-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"6.000\" OD x 12ga (0.109\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/6-000-od-x-12ga-0-109-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383930908735,"sku":"PNW-20078-316L","price":375.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/b2ad2058-ae50-4dc5-86f3-9dfe6fb9c17c.jpg?v=1793727445"},{"product_id":"2-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"2.000\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/2-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383930941503,"sku":"PNW-20032-316L","price":83.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/78d00edb-6204-43c1-a1eb-6519cfae9792.jpg?v=1793727448"},{"product_id":"0-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"0.500\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/0-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383930974271,"sku":"PNW-20002-316L","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/1c2ecc5d-2449-424d-b862-206a12b71764.jpg?v=1793727446"},{"product_id":"1-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"1.000\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/1-000-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383931072575,"sku":"PNW-20008-316L","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/bc007d8b-bae0-4900-9dfc-0da5641d12b7.jpg?v=1793727446"},{"product_id":"4-000-od-x-14ga-0-083-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"4.000\" OD x 14ga (0.083\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/4-000-od-x-14ga-0-083-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383931105343,"sku":"PNW-20064-316L","price":175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/d662ea70-23c7-421b-bd8c-bac4464ffb20.jpg?v=1793727446"},{"product_id":"1-250-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"1.250\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/1-250-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383931138111,"sku":"PNW-20012-316L","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/8cd4c5a0-17d6-447e-8e62-7981e389ef49.jpg?v=1793727446"},{"product_id":"2-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length","title":"2.500\" OD x 16ga (0.065\") Round Tube - Polished OD\/ID - 316L Stainless - 4 Foot Length","description":"\u003ch5\u003e316L STAINLESS TUBE FOR MARINE EXHAUST \u0026amp; SANITARY SYSTEMS\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003ePNW Sanitary 316L Stainless Steel Tubing\u003c\/strong\u003e is built for applications where corrosion resistance matters most. The molybdenum in 316L gives it substantially better resistance to chlorides and saltwater than 304 stainless, making it the material of choice for \u003cstrong\u003emarine exhaust systems\u003c\/strong\u003e and any fabrication exposed to salt spray, seawater, or condensing exhaust gases. The low-carbon \"L\" grade limits carbide precipitation in the weld zone, helping the tube hold its corrosion resistance after welding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMARINE EXHAUST APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMarine exhaust is one of the harshest environments for stainless. Raw-water cooled systems inject seawater into the exhaust stream, creating hot, wet, chloride-rich conditions that cause pitting and crevice corrosion in lesser alloys. 316L is the long-standing standard for these systems because it holds up where 304 can pit and fail. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWet exhaust systems and water-injected exhaust sections\u003c\/li\u003e\n\u003cli\u003eExhaust risers, elbows, and mixing sections\u003c\/li\u003e\n\u003cli\u003eDry exhaust stacks and exhaust tips on diesel inboards\u003c\/li\u003e\n\u003cli\u003eMarine generator exhaust\u003c\/li\u003e\n\u003cli\u003eExhaust hangers, brackets, and other topside fabrication exposed to salt spray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe polished OD and ID surface is smoother and less prone to holding salt deposits and contaminants than mill finish tube, giving corrosion less of a foothold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSANITARY APPLICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe same tube is manufactured to \u003cstrong\u003eASTM A270\u003c\/strong\u003e and is \u003cstrong\u003e3-A Certified\u003c\/strong\u003e, with a 32Ra polished finish suited to clean-in-place (CIP) systems. It is used throughout food, beverage, brewing, dairy, and other sanitary process lines, and is dimensionally compatible with standard sanitary ferrules, clamps, and butt-weld fittings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e316L Stainless Steel (low-carbon, molybdenum-bearing)\u003c\/li\u003e\n\u003cli\u003eGreater resistance to saltwater and chloride corrosion than 304\u003c\/li\u003e\n\u003cli\u003eASTM A270 sanitary tube; 3-A Certified\u003c\/li\u003e\n\u003cli\u003ePolished OD \u0026amp; ID (32Ra)\u003c\/li\u003e\n\u003cli\u003e4-foot lengths with no cutting charges or broken box fees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFABRICATION TIPS:\u003c\/strong\u003e For the best corrosion resistance in marine service, weld with 316L filler and back-purge with argon to protect the inside of the weld. Removing heat tint and passivating finished welds helps restore the protective surface layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBUILD A COMPLETE 316L SYSTEM:\u003c\/strong\u003e Pair this tube with our \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/mandrel-bends-316l-stainless\"\u003e316L Stainless Mandrel Bends\u003c\/a\u003e, \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/tube-reducers-transitions-316l-stainless\"\u003e316L Transition Reducers\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.aceraceparts.com\/collections\/butt-weld-tees-316l-stainless\"\u003e316L Butt-Weld Tees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLOOKING FOR SANITARY FITTINGS?\u003c\/strong\u003e This tube is also available on our sister site, \u003ca href=\"https:\/\/www.pnwsanitary.com\/products\/2-500-od-x-16ga-0-065-round-tube-polished-od-id-316l-stainless-4-foot-length\" target=\"_blank\"\u003ePNW Sanitary\u003c\/a\u003e, along with a full line of \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/fittings\" target=\"_blank\"\u003esanitary fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/butt-weld-fittings\" target=\"_blank\"\u003ebutt-weld fittings\u003c\/a\u003e, \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/gaskets\" target=\"_blank\"\u003egaskets\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.pnwsanitary.com\/collections\/sanitary-tube-316l-stainless-astm-a270\" target=\"_blank\"\u003e316L sanitary tube\u003c\/a\u003e.\u003c\/p\u003e","brand":"PNW Sanitary","offers":[{"title":"Default Title","offer_id":44383931170879,"sku":"PNW-20044-316L","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/3eb48f28-78a2-4000-af63-b609dcbb2e7d.jpg?v=1793727447"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/collections\/3eb48f28-78a2-4000-af63-b609dcbb2e7d.jpg?v=1793733856","url":"https:\/\/www.aceraceparts.com\/collections\/tube-316l-stainless.oembed","provider":"Ace Race Parts","version":"1.0","type":"link"}