| Stainless Steel | Alloy Steel | Carbon Steel |
| Tool Steel | Duplex | Pressure Vessel Steel |
| Cast Iron | Maraging Steel | Chrome-moly Steel |
| Special-Purpose Steel |
| 3M | AK Steel | Alliance LLC |
| American Elements | American Utility Metals | Assab Steels |
| Bohler-Uddeholm | Kinetics, Inc. | Misumi |
| Plansee SE | Pyrotek, Inc. | Trimay® Wear Plate Ltd |