... to 60” ScheduleSCH STD, XS, XXS, SCH 10 ~ SCH 160Material Code:1 CARBON STEELASTM A105, ASTM A350 LF1/ LF2/LF3, ASTM ... STAINLESS STEEL ASTM A182 F304/304L, F316/316L, F321, F347, 5 Duplex$super duplex stainless steel ASTM A 182 F51/UNS ... :mainly market: Poland, Vetnam, Brazil, Indonesia, Thailand, UAE, act ANSI16.5 A234 WPB Blind flanges