| Medium Carbon Steel | AISI 1000 Series Steel | Low Carbon Steel |
| High Carbon Steel |
| AK Steel | ATI Allvac | Bisalloy Steels |
| Crucible Steel | Eagle Brass Company | Groupe Arcelor |
| Hardwire, LLC | Osprey Metals, Ltd. | Pacific Sintered Materials |
| SSAB Tunnplat AB | ThyssenKrupp |