UNS steel grades — 2038 designations — Page 31
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. 14 of 50 rows differ and carry an “Indicative” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| R30016 | — | — | — | 1 |
| R30021 | 2.4979 | Nickel and cobalt alloys | 0.25–0.35 | 1 |
| R30031 | 2.4682 | Nickel and cobalt alloys | 0.45–0.55 | 1 |
| R30035 | — | — | — | 1 |
| R30155 Indicative | 1.4935 | High-temperature steels | 0.17–0.24 | 5 |
| R30155 Indicative | 1.4956 | Others | ≤ 0.1 | 2 |
| R30155 Indicative | 1.4957 | Special steels for aviation and aerospace | ≤ 0.2 | 2 |
| R30155 Indicative | 1.4971 | High-temperature steels | 0.08–0.16 | 3 |
| R30155 Indicative | 1.4974 | High-temperature steels / aviation variant | 0.08–0.16 | 1 |
| R30159 | — | — | — | 1 |
| R30188 | 2.4683 | Others | 0.05–0.15 | 4 |
| R30590 | 1.4977 | Others | 0.35–0.45 | 1 |
| R30605 | 2.4964 | High-temperature steels / aviation variant | 0.05–0.15 | 4 |
| S _ 31254 Indicative | 1.4529 | Stainless steels | ≤ 0.02 | 3 |
| S-22141 Indicative | 1.3505 | Bearing steels | 0.93–1.05 | 22 |
| S-22141 Indicative | 1.2067 | Tool steels for cold work | 0.95–1.1 | 21 |
| S10120 | 1.4596 | Others | ≤ 0.015 | 1 |
| S11000 | 1.4612 | Others | ≤ 0.015 | 1 |
| S11800 | 1.4530 | Others | ≤ 0.015 | 1 |
| S11902 | 1.4623 | Others | ≤ 0.025 | 1 |
| S13800 | 1.4534 | Special steels for aviation and aerospace | ≤ 0.05 | 4 |
| S15500 | 1.4540 | Others | ≤ 0.06 | 6 |
| S15500 | 1.4545 | Special steels for aviation and aerospace | ≤ 0.07 | 4 |
| S15700 | 1.4514 | Others | ≤ 0.09 | 3 |
| S15700 | 1.4532 | Stainless steels | ≤ 0.1 | 5 |
| S15700 | 1.4574 | Special steels for aviation and aerospace | ≤ 0.09 | 3 |
| S15780 | 1.4514 | Others | ≤ 0.09 | 3 |
| S15789 | 1.4514 | Others | ≤ 0.09 | 3 |
| S17400 | 1.4542 | Stainless steels | ≤ 0.07 | 7 |
| S17400 | 1.4548 | Special steels for aviation and aerospace | ≤ 0.07 | 4 |
| S17400 Indicative | 1.4540 | Others | ≤ 0.06 | 6 |
| S17480 | 1.4548 | Special steels for aviation and aerospace | ≤ 0.07 | 4 |
| S17700 | 1.4504 | Others | ≤ 0.09 | 4 |
| S17700 | 1.4564 | Special steels for aviation and aerospace | ≤ 0.09 | 3 |
| S17700 | 1.4568 | Stainless steels | ≤ 0.09 | 12 |
| S17780 | 1.4504 | Others | ≤ 0.09 | 4 |
| S18235 | 1.4523 | Others | ≤ 0.03 | 8 |
| S20100 | 1.4372 | Others | ≤ 0.15 | 10 |
| S20100 Indicative | 1.4373 | Non-magnetic steels | ≤ 0.15 | 13 |
| S20103 | 1.4371 | Stainless steels | ≤ 0.03 | 2 |
| S20153 | 1.4371 | Stainless steels | ≤ 0.03 | 2 |
| S20200 | 1.3965 | Non-magnetic steels | ≤ 0.1 | 9 |
| S20200 | 1.4373 | Non-magnetic steels | ≤ 0.15 | 13 |
| S20200 Indicative | 1.4372 | Others | ≤ 0.15 | 10 |
| S20430 | 1.4597 | Others | ≤ 0.1 | 1 |
| S20433 | 1.4618 | Others | ≤ 0.1 | 1 |
| S20500 Indicative | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
| S20910 | 1.3964 | Non-magnetic steels | ≤ 0.03 | 4 |
| S21500 Indicative | 1.4902 | Others | 0.11–0.16 | 1 |
| S21500 Indicative | 1.4982 | Others | 0.07–0.13 | 1 |
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.