ASTM A778 discusses straight seam and spiral butt seam welded unannealed austenitic stainless steel tubular products intended for low and moderate temperatures and corrosive service where treatment is not necessary for corrosion resistance. The tubular products must be created from flat-rolled steel sheet, coil, or plate by a shielded arc-welding process. The welds should be made by the manual or automatic electric-welding process. Weld defects will be repared by removal to sound metal and rewelding. The finished products must undergo a transverse tension test and a transverse guided bend test. Finished products shall have smooth ends free or burrs and shall be free of injurious defects.
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