| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| AK Steel | ATI Allegheny Ludlum | Bisalloy Steels |
| Carpenter Technology Corporation (Cartech) | Crucible Steel | EDRO |
| Latrobe Steel | Niagara LaSalle | PSM Industries |
| Trimay® Wear Plate Ltd | Universal Wire Works |