| Metallurgical grouping and standard specification | Alloy designation |
|---|---|
| Austenitic stainless steel (ASTM - A - 351) | CF3, CF3M, CF8, CF8M, CG8M, CG3M, CN7M |
| Nickel based super alloys (ASTM-A-494/A494M) | CW12MW \ (Hastelloy - C) N12MV (Hastelloy - B) |
| Martensitic stainless steel (ASTM-A-217) (ASTM-A-352) (ASTM-A-743) | CA15 CA6NM CA40 |
| Duplex stainless steel (ASTM-A 890/A 890M)s | CD4MCU, CD4MCuN, CD3MCuN, CD6MN, CD3MN |
| Carbon and low alloy steel (ASTM-A-216) (ASTM -A- 352) | WCB, WCC LCA, LCB, LCC, LCI |