... / ANSI B16.5/UN /BS4504 DN10~DN3600 2011 hot sale stainless steel flange 1) Standard:ANSI, DIN, EN1092-1, ... Forging, Mould Forging, Upset Forging.Main Material:Carbon Steel,ASTM A 105, ASTM A 350 LF1, LF2 ... F5a, F9, F11, F12, F22, F91Duplex stainless steel,Duplex 2205 UNS S31803/S32205 ASTM A 182 ... 318LN DIN 1.4462 SAF2205 SA182 F51Super duplex stainless steel,Super duplex 2507 UNS S32750 F53 ASTM A182 ...