... , sch100, sch120, sch140, sch160, xxs, std,sch5s, sch20s, sch40s, sch80sStandardsANSI, ASTM,DIN, JIS, BS, ISO, GB, SH, AND HG etc MaterialCarbon steel ... : ASTM/ASME A234 WPB,WPCAlloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11 ... A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347HLow-temperature steel ...