... ), (FF), (MFM) (LG) Pressure :0.25--25 (Mpa) super duplex stainless steel flange Standard: ANSI ASTM ASME JIS BS MSS DIN SH ... etc.Material: stainless steel flange, duplex stainless steel flange, nickel alloy steel flange. Stainless steel: ASTM A403 WP304,304L,316,316L ... A182 F304,304L,316,316L,321,904L,347, 904L,etc Duplex steel: ASTM A182 F51/SAF 2205/UNS S31803,F53/SAF 2507 ...