| Stainless Steel | Alloy Steel | Carbon Steel |
| Tool Steel | Duplex | Pressure Vessel Steel |
| Cast Iron | Maraging Steel | Chrome-moly Steel |
| Special-Purpose Steel |
| 3M | Alliance LLC | California Fine Wire |
| Carlson | China Tungsten | EDRO |
| Garlock Rubber Technologies | Hardwire, LLC | High Performance Alloys, Inc |
| Outokumpu | PSM Industries | ThyssenKrupp |