... size: from 1/2''_80'' standard:ASME material:carbon steel sa-105 flange Size 1/2" to 24" ASME B16.526 ... "to 80" ASME B16.47TypeWN, SW, FF, PL, BL, RJ, TH, FaceRF, FF, MF, MFM, RJ, TG, RTJ, PressureClass 150Lbs, 300Lbs ... , papermaking, construction, etcSpecial design available as the requirement of customer sa-105 flange