| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| AK Steel | Assab Steels | Bisalloy Steels |
| Crucible Steel | Groupe Arcelor | Hardwire, LLC |
| Latrobe Steel | Osprey Metals, Ltd. | Pacific Sintered Materials |
| SSAB Tunnplat AB | Wingate Alloys |