Special Steels
| Grade | UNS | AMS | ASTM | Werkstoff | British | Miscellaneous |
| Maraging 250 | K92890 | 6512 | A538 | S162 | Mil-S-46850 | |
| Maraging 300 | K93120 | 6514 | A538 | Mil-S-46850 | ||
| Maraging 350 | K93160 | Mil-S-46850 | ||||
| S80 | 5628 | A276 | 1.4057 | Mil-S-86213 | ||
| S99 | 1.6745 | S99 | 40NiMoCr105 | |||
| S130 | 5646 | A276,A479 | ||||
| S143 | S143 | FV520B, MSRR6537 |
| Grade | Maraging 250 |
| UNS | K92890 |
| AMS | 6512 |
| ASTM | A538 |
| Werkstoff | |
| British | S162 |
| Miscellaneous | Mil-S-46850 |
| Grade | Maraging 300 |
| UNS | K93120 |
| AMS | 6514 |
| ASTM | A538 |
| Werkstoff | |
| British | |
| Miscellaneous | Mil-S-46850 |
| Grade | Maraging 350 |
| UNS | K93160 |
| AMS | 6512 |
| ASTM | |
| Werkstoff | |
| British | |
| Miscellaneous | Mil-S-46850 |
| Grade | S80 |
| UNS | |
| AMS | 5628 |
| ASTM | A276 |
| Werkstoff | 1.4057 |
| British | |
| Miscellaneous | Mil-S-86213 |
| Grade | S99 |
| UNS | |
| AMS | |
| ASTM | |
| Werkstoff | 1.6745 |
| British | S99 |
| Miscellaneous | 40NiMoCr105 |
| Grade | S130 |
| UNS | |
| AMS | 5646 |
| ASTM | A276,A479 |
| Werkstoff | |
| British | |
| Miscellaneous | |
| Grade | S143 |
| UNS | |
| AMS | |
| ASTM | |
| Werkstoff | |
| British | S143 |
| Miscellaneous | FV520B, MSRR6537 |