... 600LB 900LB 4. Best Quality,competitive price. B16.5 A182 F11 alloy steel Lap Joint Flange This flange is counter bored to ... , 321H, 317, 347, 347H,904L,Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750 Carbon Steel : ASTM A 105, ASTM A 350Alloy ... : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.StandardANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16 ...