... Pipes. ASTM A249 is a standard about Welded Austenitic Stainless Steel BoilerSuperheater, Heat-Exchanger, ... either in both weld and base metal or in weld metal only. The method of cold ... Annealing, Inner bead Removed, Inner Pplishing, TIG welded, Plasma Arc Welded.3) Standards: ASTM A554, ASTM A249, ... ASTM A269, ASTM A270, ASTM A312,DIN 118504) Mark: Steel Seal ...