| 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 |
| ArcelorMittal | Assab Steels | ATI Allvac |
| FloMet LLC | Groupe Arcelor | Kinetics, Inc. |
| Latrobe Steel | Osprey Metals, Ltd. | QuesTek® Innovations |
| Trimay® Wear Plate Ltd | Universal Wire Works |