| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| AK Steel | ATI Allvac | Crucible Steel |
| Eagle Brass Company | Latrobe Steel | Niagara LaSalle |
| Osprey Metals, Ltd. | Pacific Sintered Materials | SSAB Tunnplat AB |
| ThyssenKrupp | Universal Wire Works |