UNS steel grades — 2038 designations — Page 21
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. 13 of 50 rows differ and carry an “Indicative” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| K12000 | 1.0546 | Fine-grain structural steels | ≤ 0.18 | 8 |
| K12000 | 1.0553 | Unalloyed structural steels | ≤ 0.2 | 20 |
| K12000 | 1.0562 | Fine-grain structural steels | ≤ 0.18 | 18 |
| K12000 | 1.0579 | Unalloyed structural steels | ≤ 0.2 | 3 |
| K12000 | 1.8834 | Fine-grain structural steels | ≤ 0.14 | 6 |
| K12001 Indicative | 1.0562 | Fine-grain structural steels | ≤ 0.18 | 18 |
| K12001 Indicative | 1.0565 | Fine-grain structural steels | ≤ 0.18 | 7 |
| K12001 Indicative | 1.8870 | Fine-grain structural steels | ≤ 0.18 | 1 |
| K12003 | 1.8812 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12004 | 1.8905 | Fine-grain structural steels | ≤ 0.2 | 14 |
| K12010 | 1.8963 | Weathering steels | ≤ 0.16 | 9 |
| K12020 | 1.5415 | Heat-resistant structural steels | 0.12–0.2 | 15 |
| K12020 | 1.5423 | Heat-resistant structural steels | 0.12–0.2 | 5 |
| K12021 | 1.5414 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12021 | 1.8812 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12021 | 1.8815 | Others | ≤ 0.2 | 1 |
| K12022 Indicative | 1.5403 | Heat-resistant structural steels | ≤ 0.19 | 1 |
| K12022 Indicative | 1.5414 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12022 | 1.8812 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12022 | 1.8815 | Others | ≤ 0.2 | 1 |
| K12023 | 1.5423 | Heat-resistant structural steels | 0.12–0.2 | 5 |
| K12032 | 1.8962 | Weathering steels | ≤ 0.12 | 2 |
| K12032 | 1.8963 | Weathering steels | ≤ 0.16 | 9 |
| K12037 | 1.0546 | Fine-grain structural steels | ≤ 0.18 | 8 |
| K12037 | 1.0547 | Others | ≤ 0.22 | 4 |
| K12037 | 1.0549 | Others | ≤ 0.18 | 1 |
| K12037 | 1.0562 | Fine-grain structural steels | ≤ 0.18 | 18 |
| K12037 | 1.0565 | Fine-grain structural steels | ≤ 0.18 | 7 |
| K12037 | 1.0566 | Fine-grain structural steels | ≤ 0.18 | 11 |
| K12037 | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| K12037 | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| K12039 Indicative | 1.5403 | Heat-resistant structural steels | ≤ 0.19 | 1 |
| K12039 Indicative | 1.5414 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12039 Indicative | 1.6308 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12042 Indicative | 1.5403 | Heat-resistant structural steels | ≤ 0.19 | 1 |
| K12042 Indicative | 1.6308 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12042 Indicative | 1.6310 | Heat-resistant structural steels | 0.17–0.23 | 1 |
| K12042 Indicative | 1.6311 | Heat-resistant structural steels | 0.15–0.23 | 1 |
| K12043 | 1.8959 | Weathering steels | ≤ 0.16 | 10 |
| K12043 | 1.8962 | Weathering steels | ≤ 0.12 | 2 |
| K12043 | 1.8963 | Weathering steels | ≤ 0.16 | 9 |
| K12043 | 1.8965 | Weathering steels | ≤ 0.16 | 3 |
| K12044 | 1.8962 | Weathering steels | ≤ 0.12 | 2 |
| K12044 | 1.8963 | Weathering steels | ≤ 0.16 | 9 |
| K12054 | 1.6310 | Heat-resistant structural steels | 0.17–0.23 | 1 |
| K12062 | 1.7335 | Heat-resistant structural steels | 0.08–0.18 | 22 |
| K12062 Indicative | 1.7336 | Heat-resistant structural steels | ≤ 0.17 | 6 |
| K12073 | 1.7357 | Others | 0.15–0.2 | 2 |
| K12121 | 1.5421 | Heat-resistant structural steels | 0.15–0.25 | 1 |
| K12122 | 1.7332 | Heat-resistant structural steels | ≤ 0.21 | 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.