Our Carbon & Alloy Steel Flanges are widely used in various industrial applications. Exhaust Flanges, Profile Flanges. Pressure rating class of 150, 300, 600, 900, 1500 & 2500 and size from 1/2” NB to 64” NB sizes Flanges are manufactured as per ANSI B 16.5, B16.47, MSS SP 44, API, BS, AWWA, DIN standards RANGE: Carbon Steel ASTM / ASME A 105Alloy Steel : ASTM / ASME A 182 GR F 5, F 9 , F 11 , F 12 , F 22 , F 91.ASTM / ASME A 729 GR B 11 & B