... material:stainless steel standard:ANSI pressure:150#-2500# Welded flange PN16size1/2" - 24" ASME B16.525"- 60" ASME B16.47TypeWN, ... , 2500Lbs, /PN6,PN10,PN16,PN20,PN25,PN40/ Class A, B, C, D, EstandardASME B16.5 & ASME B16.47materialCarbon steel (ASTM A105 ... F70,etc)QualificationISO,API,CE/PED to euro,etc Welded flange PN16