| Stainless Steel | Alloy Steel | Carbon Steel |
| Tool Steel | Duplex | Pressure Vessel Steel |
| Cast Iron | Maraging Steel | Chrome-moly Steel |
| Special-Purpose Steel |
| Bohler-Uddeholm | California Fine Wire | China Tungsten |
| EDRO | MetalTek | Misumi |
| Plansee SE | Pyrotek, Inc. | SSAB Tunnplat AB |
| United Cast Bar | Universal Wire Works |