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ASTM A778 Specification

The ASTM A778 specification  includes straight seam & spiral butt seam welded unannealed austenitic stainless steel tubular products.  These are intended for low/moderate temperatures, and corrosive service where treatment is not necessary for corrosion resistance. The tubular products are made from:

  • flat-rolled steel sheet
  • coil
  • plate by a shielded arc-welding process

The welds are produced by manual or automatic electric-welding process.Weld defects are repaired by removal to sound metal and rewelding. Transverse tension test and transverse-guided bend test are performed on welded joints. Finished products have smooth ends free or burrs.

At Penn Stainless, all of our products can be ordered to ASTM, ASME, AMS, UNS, MILS, ANSI, and more.  Please see our product pages or contact us directly for more information.

Please see the  ASTM Site for additional information regardng this specification.

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