| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| AK Steel | ATI Allegheny Ludlum | Bisalloy Steels |
| Carpenter Technology Corporation (Cartech) | Eagle Brass Company | EDRO |
| Hardwire, LLC | Latrobe Steel | SSAB Tunnplat AB |
| ThyssenKrupp | Universal Wire Works |