Meterial specification Sr NoSPECIFICATIONGRADES 1ASTM A216 (CARBON STEEL) WCB, WCC, WCA2ASTM A217 (ALLOY STEEL) WC6, WC9, WC5, C5, C12, CA153ASTM A351 (STAINLESS STEEL)CF8, CF8M, CF3, CF3M, CF8C, CG3M, CN7M4ASTM A352 (LOW ALLOY STEEL) LCA, LCB, LCC, LC4, CA6NM5ASTM A494 (NICKEL ALLOYS M30C (MONEL), N12MV (HASTELLOY-B) CW12MW (HASTELLOY-C)