Material Alloy steel (ASTM A234 WP12/WP11/WP22/WP5/WP9/WP91) Stainless steel (ASTM A403 WP304/WP304L/WP316/WP316L) Carbon steel (ASTM A234WPS, A234WPC, A420 WPL6), St45.8 A105 A106 STG42) Standard ASME B16.5 MSS SP44 Gost JIS etc Type WN FLANGE, SO FALNGE, LAP JOINT FALNGE, THREADED FLANGE, SOCKET FLANGE , BLIND FLANGE Pressure class 150 class 300 class 600 class 900 class 1500 PN6 PN16 PN25 PN40 PN100...... Size 1/2-80 inch (DN15-DN2000) Surface treatment Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc, Hot dipped Galvanized. Inspection Factory in-house self check or Third Party inspection Packing Wooden case, pallet or as customers requirement Applications Petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc Heat Treatment Normalizing, Annealing, Quenching+Tempering Payment L/C T/T
