SCH40 stainless steel flange material:stainless steel standard:ANSI pressure:150#-2500# SCH40 stainless steel flangesize1/2" - 24" ASME B16.525"- 60" ASME ... , EstandardASME B16.5 & 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 ...