... flange material:stainless steel standard:ANSI pressure:150#-2500# ASTM SCH40 stainless steel flangesize1/2" - 24" ASME ... 5 & ASME B16.47materialCarbon steel (ASTM A105,A350 LF2,etc)Stainless steel (ASTM A182 F304, F304L,F316,F316L, ... F321, etc)Alloy steel (ASTM A694 A182 F12, ... F11,F22,F5,F9,F91,etc)Pipeline steel (ASTM A694 F42 F46 F52 F56 F60 F65 F70 ...