UNS steel grades — 2038 designations — Page 34
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. 22 of 50 rows differ and carry an “Indicative” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| S31260 | 1.4481 | Stainless steels | ≤ 0.03 | 1 |
| S31266 | 1.4659 | Others | ≤ 0.02 | 1 |
| S31400 | 1.4841 | Heat resistant steels | ≤ 0.2 | 17 |
| S31500 Indicative | 1.4417 | Cast stainless steels | ≤ 0.03 | 1 |
| S31500 Indicative | 1.4424 | Others | ≤ 0.03 | 1 |
| S31500 Indicative | 1.4841 | Heat resistant steels | ≤ 0.2 | 17 |
| S31600 Indicative | 1.4401 | Stainless steels | ≤ 0.07 | 20 |
| S31600 Indicative | 1.4436 | Stainless steels | ≤ 0.05 | 19 |
| S31600 Indicative | 1.4984 | High-temperature steels / aviation variant | 0.04–0.1 | 4 |
| S31600 Indicative | 1.4404 | Stainless steels | ≤ 0.03 | 25 |
| S31603 | 1.4404 | Stainless steels | ≤ 0.03 | 25 |
| S31603 | 1.4432 | Others | ≤ 0.03 | 11 |
| S31603 | 1.4435 | Stainless steels | ≤ 0.03 | 20 |
| S31603 Indicative | 1.4561 | Stainless steels | ≤ 0.02 | 2 |
| S31603 Indicative | 1.4401 | Stainless steels | ≤ 0.07 | 20 |
| S31603 Indicative | 1.4436 | Stainless steels | ≤ 0.05 | 19 |
| S31603 Indicative | 1.4984 | High-temperature steels / aviation variant | 0.04–0.1 | 4 |
| S31609 | 1.4401 | Stainless steels | ≤ 0.07 | 20 |
| S31609 | 1.4919 | High-temperature steels | 0.04–0.08 | 7 |
| S31620 Indicative | 1.4427 | Others | ≤ 0.12 | 3 |
| S31635 Indicative | 1.4571 | Stainless steels | ≤ 0.08 | 18 |
| S31635 Indicative | 1.4573 | Cast stainless steels | ≤ 0.04 | 12 |
| S31640 | 1.4580 | Stainless steels | ≤ 0.08 | 8 |
| S31640 Indicative | 1.4560 | Others | ≤ 0.035 | 8 |
| S31640 Indicative | 1.4580 | Others | ≤ 0.08 | 8 |
| S31651 | 1.4495 | Others | ≤ 0.08 | 5 |
| S31653 | 1.4406 | Stainless steels | ≤ 0.03 | 8 |
| S31653 | 1.4429 | Stainless steels | ≤ 0.03 | 12 |
| S31653 Indicative | 1.4909 | High-temperature steels | 0.015–0.03 | 4 |
| S31673 Indicative | 1.4436 | Stainless steels | ≤ 0.05 | 19 |
| S31673 Indicative | 1.4435 | Stainless steels | ≤ 0.03 | 20 |
| S31673 Indicative | 1.4432 | Others | ≤ 0.03 | 11 |
| S31680 | 1.4403 | Others | ≤ 0.05 | 2 |
| S31681 | 1.4403 | Others | ≤ 0.05 | 2 |
| S31682 | 1.4455 | Others | ≤ 0.03 | 1 |
| S31683 | 1.4430 | Stainless steels | ≤ 0.02 | 1 |
| S31700 | 1.4445 | Others | ≤ 0.08 | 6 |
| S31700 | 1.4449 | Stainless steels | ≤ 0.035 | 7 |
| S31700 Indicative | 1.4438 | Stainless steels | ≤ 0.03 | 13 |
| S31703 | 1.4438 | Stainless steels | ≤ 0.03 | 13 |
| S31726 | 1.4439 | Stainless steels | ≤ 0.03 | 8 |
| S31726 | 1.4483 | Stainless steels | ≤ 0.03 | 2 |
| S31726 Indicative | 1.4434 | Stainless steels | ≤ 0.03 | 4 |
| S31753 | 1.4434 | Stainless steels | ≤ 0.03 | 4 |
| S31753 | 1.4442 | Stainless steels | ≤ 0.03 | 2 |
| S31780 | 1.4440 | Others | ≤ 0.03 | 1 |
| S31783 | 1.4440 | Others | ≤ 0.03 | 1 |
| S31803 | 1.4462 | Stainless steels | ≤ 0.03 | 13 |
| S31980 | 1.4576 | Others | ≤ 0.06 | 2 |
| S32001 | 1.4482 | Others | ≤ 0.03 | 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.






