| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| Assab Steels | ATI Allegheny Ludlum | ATI Allvac |
| EDRO | Groupe Arcelor | Hardwire, LLC |
| Latrobe Steel | Osprey Metals, Ltd. | SSAB Tunnplat AB |
| ThyssenKrupp | Universal Wire Works | Wingate Alloys |