... 316,ocr13,CS. Size1/2"-72"Class150#, 300#, 400#, 600#, 900#, 1500#, 2500#SpecificationStainless Steel ASTM ... A182 F51/F53/F55/F60Nicke alloys Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800Cu-Ni ... FLANGE, BLIND FLANGE.Pressure Class: 75, 150, 300, 400, 600, 900* ASME/ANSI B16.36: (ORIFICE ... WELDING NECK FLANGE, BLIND FLANGE.Pressure Class: 300, 400, 600, 900* API 6A: WELDING NECK FLANGE, THREAD ...