| AISI 4000 Series Steel | Low Alloy Steel | Medium Alloy Steel |
| AISI 8000 Series Steel | AISI 5000 Series Steel | AISI 6000 Series Steel |
| AISI 9000 Series Steel |
| AK Steel | ATI Allvac | Crucible Steel |
| EDRO | Groupe Arcelor | Kinetics, Inc. |
| Pacific Sintered Materials | PSM Industries | SSAB Tunnplat AB |
| ThyssenKrupp | Wingate Alloys |