| 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 | Carpenter Technology Corporation (Cartech) | EDRO |
| FloMet LLC | Groupe Arcelor | Latrobe Steel |
| Osprey Metals, Ltd. | QuesTek® Innovations | The NanoSteel® Company |
| ThyssenKrupp | Trimay® Wear Plate Ltd |