| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| Assab Steels | ATI Allegheny Ludlum | EDRO |
| Hardwire, LLC | Niagara LaSalle | Osprey Metals, Ltd. |
| Pacific Sintered Materials | PSM Industries | SSAB Tunnplat AB |
| ThyssenKrupp | Trimay® Wear Plate Ltd | Wingate Alloys |