... B16.5 150 SIZE MATERIAL HEAT NO.For forged steel flanges, we supply per all foreign standards like ASME ... , ANSI, MSS, API, AWWA, EN, DIN, BS, NFE, JIS, JPI, KS ... The materials of the flange contain carbon steel, alloy steel, stainless steel and high alloy steel. The size range is from 1 ... equipment or pipeline engineering per ASME and API codes. STEEL FLANGE