| Carpenter 158® | (CarTech® No. 158®), AMS 6265, ASTM A646, QQ-S-624C, SAE J1249 Available in .75″ diameter ONLY |
| 4340 | AMS 6359; AMS 6414; AMS 6415; Pratt & Whitney PWA-S-6414 |
| 4620 | AMS 6294 |
| 52100 | AMS 6440; AMS 6444 |
| 6150 | AMS 6448 |
| 8740 | AMS 6322 |
| 9310 | AMS 6260; AMS 6265; AMS 6267 |
| 9-4-30 | AMS 6526; Boeing BMS-7-182 |
| Aermet 100 | AMS 6532; Boeing P.S. 21211; MMS-217; MOOG B02044A |
| CBS-50 NiL | AMS 6278 |
| H-11 | AMS 6485; AMS 6487 |
| Hy-Tuf | AMS 6425; AMS 6418; DMS-1841 Grade A |
| Nitriding 135M | AMS 6471; AMS 6470; Bell 299-947-036 |
| Pyrowear 53 | AMS 6308; Bell 299-947-334; Boeing HMS 6-122; HP 4-1; Pratt & Whitney PWA-S-6308; Sikorsky SS9706 |
| 4340 Mod. (300M) | AMS 6417; AMS 6419 |
