| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| AK Steel | Bisalloy Steels | EDRO |
| Groupe Arcelor | Latrobe Steel | Osprey Metals, Ltd. |
| Pacific Sintered Materials | PSM Industries | SSAB Tunnplat AB |
| ThyssenKrupp | Universal Wire Works | Wingate Alloys |