Tubing • Stainless Steel Tubing • 321 Stainless Steel Tubing

321SS tubing is often used in chemical, industrial and medical applications.

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  • Penn Stainless Products, Inc.

    Penn Stainless supplies 317/L stainless steel seamless and welded tube. SS seamless tube is offered in each of ASTM A 213, ASTM A 269 and ASTM A 511 and can be cut to exact sizes. Non-standard sizes can be cut to order. 317/L stainless steel welded tubing can be supplied in each of ASTM A 269, ASTM A 249 or as rolled and welded. A range of diameters is available from 1/8” up to 96” and can be cut to size. Check out Penn's "easy to use" product selector.

  • Arch City Steel & Alloy, Inc.

    Arch City Steel offers 321 stainless steel tubing in fractional, metric and Imperial sizes. 321 SS tube is available in an OD range of 1/6" to 11 3/4" and wall thicknesses of 0.01" to 1.5". Specs include ASTM A213, ASME SA213, ASTM A249, ASME SA249, ASTM A268, ASTM A269, ASTM A511, AMS 5566, AMS 5570, AMS 5571, AMS 5576, AMS 5639, AMS 5645, MIL-T-6845, MIL-T-8504, and MIL-T-8808.

  • Plymouth Tube Co.

    Plymouth Tube is a manufacturer of 321 stainless steel tubing for the aerospace industry. Welded, drawn and seamless 321 SS tube is available. Seamless 321 SS tubing size ranges are offered in .125-1" (3.175-25.4mm) OD, .016-.065" (.41-1.65mm) wall, and 50' maximum length. Welded and drawn 321 stainless steel size ranges include .188-4" (4.775-101.6mm) OD, .016-.218" (.41-5.537mm) wall, and 50' maximum length.

  • Stainless Tubular Products

    Stainless Tubular is a supplier of ornamental 321 stainless steel tubing in outside diameters of 1/8" to 36" and wall thicknesses from .010" to 2.0". Available specifications include ASTM A/ASME SA - 249, 269, 213, 270, 511. Round, square and rectangular SS tube models are available.

  • Snappy Materials

    Snappy Materials is a supplier of 321 stainless steel tubing to AMS 5557, 5570, 5576, 5645 and MIL-T-8606, 8808, 8973 specifications. Stainless steel tube comes in 0.125" OD sizes. Snappy offers an extensive stock of aircraft 321 SS tubing for high temperature applications.

  • Factory Steel & Metal Supply

    Factory Steel and Metal Supply offers 321-S and 321-W stainless steel tubing in 1/4", 3/8", 1/2", 3/4" and 7/8" outside diameters. 321-S stainless steel also comes in 1" and 7" OD. 321-W SS tubing additionally comes in 2" and 2 1/2" OD. Tube wall thicknesses range from .028" to .313".

  • American Tube Technology, Inc.

    American Tube Technology produces small diameter 321 stainless steel tubing for demanding applications. 321 SS is a variant of the 304 standard and includes titanium in it's composition. This results in stronger and more corrosion resistant tube. 321 stainless steel tubing is good for chemical, industrial and medical applications.

  • Future Metals, Inc.

    Future Metals serves the aerospace industry. They are a distributor of 321 stainless steel tubing to AMS 5557, AMS 5570, AMS 5576, AMS 5645 and MIL-T-8606, MIL-T-8808, MIL-T-8973 specifications.

  • Tube Methods, Inc.

    Tube Methods are manufacturers of 321 stainless steel tubing for aircraft hydraulic lines, and chemical and electrical instrumentation. Their 321 SS tube is 18% chromium and 11% nickel stabilized with titanium.

  • Phillips & Johnston, Inc.

    Phillips & Johnston are providers of welded, welded and drawn, and seamless 321 stainless steel tubing available in standard and Austenitic grade. Standard and custom sizes are also available.

  • Industrial Metals International, Ltd.

    Industrial Metals International are suppliers of seamless 321 SS tube in AMS 5570, MIL-T-8606, and MIL-T-8808 specifications.