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254SMO Stainless Steel Seamless Pipe Tube / UNS S31254 Stainless Steel SS Pipe ERW Pipe ASME SA 213 ASTM A213 ASTM A269 S31254 254 SMO EN 10216-5 1.4547 Alloy 6Mo X1CrNiMoCuN20-18-7 Tubing is an ...