UNS steel grades — 2038 designations — Page 38
Every grade designated under UNS, with the material number it maps to, what kind of steel it is, its carbon window and how many other standards carry it. Open a grade for its full composition, properties and its designations in other standards. Unless marked, every name here is an asserted identity — the same grade under this standard’s own designation. 9 of 50 rows differ and carry an “Indicative” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| S44401 Indicative | 1.4523 | Others | ≤ 0.03 | 8 |
| S44401 Indicative | 1.4321 | Others | ≤ 0.03 | 8 |
| S44500 | 1.4621 | Others | ≤ 0.03 | 1 |
| S44535 | 1.4760 | Others | ≤ 0.03 | 1 |
| S44600 | 1.4749 | Heat resistant steels | 0.15–0.2 | 10 |
| S44600 Indicative | 1.4762 | Heat resistant steels | ≤ 0.12 | 12 |
| S44625 | 1.4131 | Others | ≤ 0.01 | 2 |
| S44627 | 1.4131 | Others | ≤ 0.01 | 2 |
| S44635 | 1.4575 | Stainless steels | ≤ 0.015 | 3 |
| S44660 Indicative | 1.4575 | Stainless steels | ≤ 0.015 | 3 |
| S44660 Indicative | 1.4750 | Others | ≤ 0.03 | 3 |
| S44700 | 1.4135 | Others | ≤ 0.01 | 1 |
| S45500 | — | — | — | 2 |
| S45500 Indicative | 1.4310 | Stainless steels | 0.05–0.15 | 18 |
| S46500 | — | — | — | 2 |
| S46910 | 1.4645 | Others | ≤ 0.03 | 1 |
| S50100 | 1.7362 | Hydrogen resistant steels | 0.1–0.15 | 13 |
| S50200 | 1.7362 | Hydrogen resistant steels | 0.1–0.15 | 13 |
| S50280 | 1.7373 | Others | 0.04–0.09 | 1 |
| S50281 | 1.7373 | Others | 0.04–0.09 | 1 |
| S50400 | 1.7386 | Hydrogen resistant steels | 0.08–0.15 | 6 |
| S50480 | 1.7388 | Others | 0.04–0.09 | 1 |
| S50488 | 1.7386 | Hydrogen resistant steels | 0.08–0.15 | 6 |
| S59180 | 1.4903 | High-temperature steels | 0.08–0.12 | 4 |
| S63008 | 1.4871 | Valve steels | 0.48–0.58 | 17 |
| S63012 | 1.4875 | Valve steels | 0.5–0.6 | 4 |
| S63018 | 1.4866 | Valve steels | 0.28–0.38 | 2 |
| S63019 | 1.4882 | Valve steels | 0.45–0.55 | 1 |
| S64152 | 1.4933 | Special steels for aviation and aerospace | 0.08–0.13 | 3 |
| S64152 | 1.4939 | High-temperature steels / aviation variant | 0.08–0.13 | 2 |
| S64299 | 1.4337 | Others | ≤ 0.14 | 1 |
| S65006 | 1.4747 | Others | 0.75–0.85 | 7 |
| S65007 | 1.4718 | Others | 0.4–0.5 | 16 |
| S65007 Indicative | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| S66220 | 1.4644 | Others | ≤ 0.08 | 1 |
| S66286 | 1.2779 | Tool steels for hot work | ≤ 0.08 | 4 |
| S66286 | 1.4943 | Special steels for aviation and aerospace | ≤ 0.06 | 4 |
| S66286 | 1.4944 | High-temperature steels / aviation variant | ≤ 0.08 | 4 |
| S66286 | 1.4954 | High-temperature steels | ≤ 0.08 | 3 |
| S66286 | 1.4980 | High-temperature steels | 0.03–0.08 | 8 |
| S66286 Indicative | 1.4606 | Others | ≤ 0.08 | 4 |
| S66545 | 1.4943 | Special steels for aviation and aerospace | ≤ 0.06 | 4 |
| S82441 | 1.4662 | Others | ≤ 0.03 | 1 |
| T11301 | 1.3346 | High-speed steels | 0.78–0.86 | 5 |
| T11302 | 1.3343 | High-speed steels | 0.86–0.94 | 19 |
| T11302 Indicative | 1.3339 | High-speed steels | 0.8–0.88 | 16 |
| T11304 | 1.3351 | High-speed steels | 1.25–1.4 | 4 |
| T11307 | 1.3348 | High-speed steels | 0.95–1.05 | 8 |
| T11313 | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
| T11323 | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
This grade’s own name — recorded in our sources as this grade’s own designation under that standard.
Indicative — taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.
Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.