| 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 |
| Bisalloy Steels | Bohler-Uddeholm | Crucible Steel |
| EDRO | Kinetics, Inc. | Niagara LaSalle |
| Osprey Metals, Ltd. | PSM Industries | SSAB Tunnplat AB |
| The NanoSteel® Company | Universal Wire Works | Wingate Alloys |