... : 1pcs(Carbon/Stainless Steel) 5)FOB:1-89$/pc Socket Welding Flange PNDINPN 0.1,0.25,0.6,1.0 ... , F50, F52, F56, F60, F65, F70(Stainess Steel): ASTM A182 F304,304L, F316,316L,1Cr18Ni9Ti,0Cr18Ni9Ti,321,18-8(Alloy Steel ... ): ASTM A182 F1, F5a, F9, F11, F12, F22, F91,A182F12,A182F11 ... prices!You will get our quick reply! Alloy Steel Socket Welding Flange