UNS steel grades — 2038 designations — Page 22
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 indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 8 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
2038 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| K12143 This grade’s own name | 1.7332 | Heat-resistant structural steels | ≤ 0.21 | 1 |
| K12147 This grade’s own name | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| K12202 | 1.8836 | Fine-grain structural steels | ≤ 0.16 | 3 |
| K12202 | 1.8902 | Fine-grain structural steels | ≤ 0.2 | 19 |
| K12202 | 1.8905 | Fine-grain structural steels | ≤ 0.2 | 14 |
| K12202 | 1.8912 | Fine-grain structural steels | ≤ 0.2 | 5 |
| K12202 | 1.8915 | Fine-grain structural steels | ≤ 0.2 | 2 |
| K12202 | 1.8919 | Fine-grain structural steels | ≤ 0.21 | 1 |
| K12202 | 1.8932 | Fine-grain structural steels | ≤ 0.2 | 1 |
| K12202 | 1.8935 | Fine-grain structural steels | ≤ 0.2 | 3 |
| K12211 | 1.0562 | Fine-grain structural steels | ≤ 0.18 | 18 |
| K12211 | 1.8963 | Weathering steels | ≤ 0.16 | 9 |
| K12320 This grade’s own name | 1.5415 | Heat-resistant structural steels | 0.12–0.2 | 15 |
| K12320 This grade’s own name | 1.5423 | Heat-resistant structural steels | 0.12–0.2 | 5 |
| K12437 | 1.0473 | Heat-resistant structural steels | 0.1–0.22 | 10 |
| K12437 | 1.0488 | Fine-grain structural steels | ≤ 0.16 | 4 |
| K12437 | 1.0539 | Fine-grain structural steels | ≤ 0.2 | 1 |
| K12437 | 1.0562 | Fine-grain structural steels | ≤ 0.18 | 18 |
| K12437 | 1.0583 | Others | ≤ 0.18 | 1 |
| K12437 | 1.0584 | Others | ≤ 0.18 | 1 |
| K12437 | 1.0589 | Others | ≤ 0.18 | 1 |
| K12437 | 1.1106 | Fine-grain structural steels | ≤ 0.18 | 2 |
| K12437 | 1.8864 | Others | ≤ 0.18 | 1 |
| K12437 | 1.8902 | Fine-grain structural steels | ≤ 0.2 | 19 |
| K12437 | 1.8912 | Fine-grain structural steels | ≤ 0.2 | 5 |
| K12437 | 1.8932 | Fine-grain structural steels | ≤ 0.2 | 1 |
| K12437 | 1.9533 | Others | ≤ 0.24 | 1 |
| K12447 | 1.0436 | Fine-grain structural steels | 0.15–0.2 | 14 |
| K12447 | 1.0562 | Fine-grain structural steels | ≤ 0.18 | 18 |
| K12447 This grade’s own name | 1.0577 | Unalloyed structural steels | ≤ 0.2 | 11 |
| K12447 | 1.8837 | Others | ≤ 0.16 | 1 |
| K12447 | 1.8870 | Fine-grain structural steels | ≤ 0.18 | 1 |
| K12510 This grade’s own name | 1.1106 | Fine-grain structural steels | ≤ 0.18 | 2 |
| K12524 This grade’s own name | 1.8815 | Others | ≤ 0.2 | 1 |
| K12524 | 1.8905 | Fine-grain structural steels | ≤ 0.2 | 14 |
| K12524 | 1.8907 | Fine-grain structural steels | ≤ 0.21 | 1 |
| K12524 | 1.8917 | Fine-grain structural steels | ≤ 0.21 | 1 |
| K12524 | 1.8937 | Fine-grain structural steels | ≤ 0.21 | 1 |
| K12529 | 1.5403 | Heat-resistant structural steels | ≤ 0.19 | 1 |
| K12529 | 1.6310 | Heat-resistant structural steels | 0.17–0.23 | 1 |
| K12529 | 1.6311 | Heat-resistant structural steels | 0.15–0.23 | 1 |
| K12529 | 1.6368 | Heat-resistant structural steels | ≤ 0.17 | 4 |
| K12539 | 1.5403 | Heat-resistant structural steels | ≤ 0.19 | 1 |
| K12539 | 1.6310 | Heat-resistant structural steels | 0.17–0.23 | 1 |
| K12539 | 1.6311 | Heat-resistant structural steels | 0.15–0.23 | 1 |
| K12539 | 1.6368 | Heat-resistant structural steels | ≤ 0.17 | 4 |
| K12542 This grade’s own name | 1.8812 | Heat-resistant structural steels | ≤ 0.2 | 1 |
| K12554 | 1.5403 | Heat-resistant structural steels | ≤ 0.19 | 1 |
| K12554 | 1.6310 | Heat-resistant structural steels | 0.17–0.23 | 1 |
| K12554 | 1.6311 | Heat-resistant structural steels | 0.15–0.23 | 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.