| Precipitation Hardening Stainless | T 300 Series Stainless Steel | T 400 Series Stainless Steel |
| Cast Stainless Steel | T 600 Series Stainless Steel | T S10000 Series Stainless Steel |
| 3M | American Utility Metals | Ametek |
| ATI Allegheny Ludlum | Carlson | Crucible Steel |
| Eagle Brass Company | EDRO | Latrobe Steel |
| Misumi | Osprey Metals, Ltd. | P & P Technology |