| Precipitation Hardening Stainless | T 300 Series Stainless Steel | T 400 Series Stainless Steel |
| Cast Stainless Steel | T 600 Series Stainless Steel | T S10000 Series Stainless Steel |
| Ametek | Carlson | Groupe Arcelor |
| Latrobe Steel | MetalTek | Misumi |
| Osprey Metals, Ltd. | PSM Industries | Pyramid Stainless Steel Ind Co Ltd |
| Universal Wire Works | Wingate Alloys |