UNS steel grades — 2038 designations — Page 32
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. 19 of 50 rows differ and carry an “Indicative” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| S21800 | — | — | — | 3 |
| S21900 | 1.3965 | Non-magnetic steels | ≤ 0.1 | 9 |
| S21900 | 1.4454 | Others | ≤ 0.04 | 1 |
| S21904 | 1.4375 | Others | ≤ 0.04 | 2 |
| S21904 | 1.4454 | Others | ≤ 0.04 | 1 |
| S21906 | — | — | — | 2 |
| S30100 | 1.4310 | Stainless steels | 0.05–0.15 | 18 |
| S30100 | 1.4319 | Stainless steels | ≤ 0.07 | 11 |
| S30100 | 1.4324 | Special steels for aviation and aerospace | ≤ 0.12 | 7 |
| S30103 | 1.4318 | Stainless steels | ≤ 0.03 | 4 |
| S30153 | 1.4318 | Stainless steels | ≤ 0.03 | 4 |
| S30200 | 1.4300 | Stainless steels | ≤ 0.12 | 15 |
| S30200 | 1.4310 | Stainless steels | 0.05–0.15 | 18 |
| S30200 | 1.4324 | Special steels for aviation and aerospace | ≤ 0.12 | 7 |
| S30200 | 1.4325 | Stainless steels | 0.03–0.15 | 11 |
| S30215 | 1.4326 | Others | ≤ 0.15 | 4 |
| S30300 | 1.4305 | Stainless steels | ≤ 0.1 | 17 |
| S30300 Indicative | 1.4301 | Stainless steels | ≤ 0.07 | 23 |
| S30300 Indicative | 1.4306 | Stainless steels | ≤ 0.03 | 18 |
| S30300 Indicative | 1.4307 | Stainless steels | ≤ 0.03 | 14 |
| S30300 Indicative | 1.4303 | Stainless steels | ≤ 0.06 | 14 |
| S30300 Indicative | 1.4311 | Stainless steels | ≤ 0.03 | 13 |
| S30302 Indicative | 1.4300 | Stainless steels | ≤ 0.12 | 15 |
| S30309S Indicative | 1.4829 | Others | ≤ 0.14 | 8 |
| S30323 | 1.4625 | Others | ≤ 0.15 | 7 |
| S30330 Indicative | 1.4570 | Others | ≤ 0.08 | 3 |
| S30331 | 1.4570 | Others | ≤ 0.08 | 3 |
| S30347 Indicative | 1.4544 | Special steels for aviation and aerospace | ≤ 0.08 | 6 |
| S30400 | 1.4301 | Stainless steels | ≤ 0.07 | 23 |
| S30400 | 1.4314 | Special steels for aviation and aerospace | ≤ 0.07 | 4 |
| S30400 Indicative | 1.4306 | Stainless steels | ≤ 0.03 | 18 |
| S30400 Indicative | 1.4307 | Stainless steels | ≤ 0.03 | 14 |
| S30400 Indicative | 1.4305 | Stainless steels | ≤ 0.1 | 17 |
| S30400 Indicative | 1.4303 | Stainless steels | ≤ 0.06 | 14 |
| S30400 Indicative | 1.4311 | Stainless steels | ≤ 0.03 | 13 |
| S30403 | 1.4306 | Stainless steels | ≤ 0.03 | 18 |
| S30403 | 1.4307 | Stainless steels | ≤ 0.03 | 14 |
| S30403 Indicative | 1.4301 | Stainless steels | ≤ 0.07 | 23 |
| S30403 Indicative | 1.4305 | Stainless steels | ≤ 0.1 | 17 |
| S30403 Indicative | 1.4303 | Stainless steels | ≤ 0.06 | 14 |
| S30403 Indicative | 1.4311 | Stainless steels | ≤ 0.03 | 13 |
| S30409 | 1.4948 | High-temperature steels | 0.04–0.08 | 8 |
| S30415 | 1.4818 | Others | 0.04–0.08 | 3 |
| S30415 | 1.4891 | Others | 0.04–0.06 | 2 |
| S30430 | 1.4567 | Stainless steels | ≤ 0.04 | 8 |
| S30430 Indicative | 1.4560 | Others | ≤ 0.035 | 8 |
| S30434 | 1.4917 | Others | 0.07–0.14 | 1 |
| S30451 | 1.4301 | Stainless steels | ≤ 0.07 | 23 |
| S30451 | 1.4315 | Stainless steels | ≤ 0.06 | 5 |
| S30451 | 1.6907 | Low-temperature steels | ≤ 0.04 | 5 |
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.