ProductStainless steel High Pressure Welded FlangeMaterial GradeF304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750CertificationISO9001:2016, TSStandardANSI :ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48DIN :DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673B.S :BS4504 , BS4504, BS1560, BS10Size10-2000Pressure150#, 300#,400 #,600#,900#, 1500# & 2500 #.TypePLFlange surfaceFF, RF,MFM,TG,RJStainless SteelASTM A182 F304,F304L,F316,F316L,1cr18Ni9Ti,0cr18Ni9Ti,321,18-8