... ,KS,EN etc 2.F11/F22/F92 3.150LB 300LB 600LB 900LB 4. Best Quality,competitive price. B16.5 ... ANSI B 16.5 Class 150 ANSI B 16.5 Class 300ANSI B 16.5 Class 600ANSI B 16.5 Class 1500Stainless Steel ... 300#,400 #,600#,900#, 1500# & 2500 #.StandardANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16 ... , DIN2638, DIN2673B.S : BS4504 , BS4504, BS1560, BS10 B16.5 A182 F92 alloy steel Lap Joint Flange