... Steel Flange 1.OD: 1/2''-48'' 2.WT : CL150-CL3000 3.Standard : ASME, GB, DIN, JIS 4.Material : A105... Flange ... Blind,Socket Weld,Lap Joint,Threaded,Orifice Flange,Swivel Flange,Spectacle Blind,Etc. Size 1/2''- ... 72''Class 150#,300#,400#,600#,900#,1500#,2500#,3000# Specification Carbon Steel ... F9/F11/F22/F91/Etc. Duplex stainless steel ASTM A182 F51/F53/F55/F60 Nicke ...