Socket Welding Flange socket weld flange socket welding flange sealing surface forms: raised face (RF), convex surface (MFM), tongue and groove (TG), ring joint face (RJ) Material: Carbon Steel (Carbon Steel) : ASTM A105, 20 #, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2 large-diameter welded flange, LF3 CL1/CL2, ASTM A694 F42, F46 316 large-diameter welded flange, F48, F50, F52, F56, F60 large-diameter welded flange 3 m, F65, F70; alloy (Alloy Steel): ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo , 12Cr2Mo1, A335P22, St45.8 / Ⅲ, 35CrMoV, 45CrMo and other manufacturing standards: ANSI B16.5, GB/T9117.1-2000-GB/T9117.4-200 such as carbon (Carbon Steel): ASTM A105, 20 #, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52 304 large-diameter welded flange, F56, F60, F65, F70; stainless steel (Stainess Steel): ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti ,321,18-8; alloy (Alloy Steel): ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8 / Ⅲ [Shangrao large-diameter welded flange] | 304 large-diameter welded flange | million harbor harbor provided by the million. Welcome to consult Hebei Billion Pipeline Co. (www.hbyhgd777.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Lu Shouan