AISI / SAE steel grades — 2156 designations — Page 38
Every grade designated under AISI / SAE, 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. 7 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
2156 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| M41 This grade’s own name | 1.3246 | High-speed steels | 1.05–1.15 | 5 |
| M41 | 1.3243 | High-speed steels | 0.87–0.95 | 19 |
| M42 This grade’s own name | 1.3247 | High-speed steels | 1.05–1.15 | 14 |
| M47 | 1.3247 | High-speed steels | 1.05–1.15 | 14 |
| M50 This grade’s own name | 1.3551 | Bearing steels | 0.77–0.85 | 4 |
| M7 This grade’s own name | 1.3348 | High-speed steels | 0.95–1.05 | 8 |
| MT309 | 1.4833 | Heat resistant steels | ≤ 0.15 | 15 |
| MT309S | 1.4833 | Heat resistant steels | ≤ 0.15 | 15 |
| MT405 | 1.4724 | Heat resistant steels | ≤ 0.12 | 15 |
| N08002 | 1.4865 | Heat-resistant cast steels | 0.3–0.5 | 5 |
| N08004 | 1.4865 | Heat-resistant cast steels | 0.3–0.5 | 5 |
| N08005 | 1.4865 | Heat-resistant cast steels | 0.3–0.5 | 5 |
| N08028 | 1.4563 | Stainless steels | ≤ 0.02 | 5 |
| N08030 | 1.4865 | Heat-resistant cast steels | 0.3–0.5 | 5 |
| N08151 | 1.4859 | Heat-resistant cast steels | 0.05–0.15 | 4 |
| N08330 | 1.4864 | Heat resistant steels | ≤ 0.15 | 14 |
| N08332 | 1.4876 | Heat resistant steels | ≤ 0.12 | 12 |
| N08705 | 1.4857 | Heat-resistant cast steels | 0.3–0.5 | 3 |
| N08800 | 1.4876 | Heat resistant steels | ≤ 0.12 | 12 |
| N08810 | 1.4876 | Heat resistant steels | ≤ 0.12 | 12 |
| N08811 | 1.4876 | Heat resistant steels | ≤ 0.12 | 12 |
| N08811 | 1.4959 | High-temperature steels | 0.05–0.1 | 6 |
| N08904 | 1.4539 | Stainless steels | ≤ 0.02 | 10 |
| N08926 | 1.4529 | Stainless steels | ≤ 0.02 | 3 |
| N1 | 1.0443 | Others | ≤ 0.11 | 13 |
| No 20 B | EN-JL1010 | Others | — | 16 |
| No 25 B | EN-JL1020 | Others | — | 22 |
| No 30 B | EN-JL1030 | Others | — | 22 |
| No 35 B | EN-JL1040 | Others | — | 22 |
| No 45 B | EN-JL1050 | Others | — | 22 |
| No 50 B | EN-JL1060 | Others | — | 21 |
| No 55 B | — | — | — | 4 |
| No.20 | EN-JL1010 | Others | — | 16 |
| No.25 | EN-JL1020 | Others | — | 22 |
| No.30 | EN-JL1030 | Others | — | 22 |
| No.35 | EN-JL1040 | Others | — | 22 |
| No.45 | EN-JL1050 | Others | — | 22 |
| NO8028 | 1.4563 | Stainless steels | ≤ 0.02 | 5 |
| NO8367 | 1.4529 | Stainless steels | ≤ 0.02 | 3 |
| NO8904 | 1.4539 | Stainless steels | ≤ 0.02 | 10 |
| O 2 This grade’s own name | 1.2842 | Tool steels for cold work | 0.85–0.95 | 14 |
| O1 This grade’s own name | 1.2510 | Tool steels for cold work | 0.9–1.05 | 13 |
| O7 | 1.2419 | Tool steels for cold work | 1–1.1 | 16 |
| P 6 | 1.5752 | Case hardening steels | 0.14–0.2 | 15 |
| P 6 | 1.5752 | Case hardening steels | 0.14–0.2 | 15 |
| P 6 | 1.2735 | Tool steels for cold work | 0.1–0.17 | 2 |
| P20 This grade’s own name | 1.2330 | Others | 0.32–0.37 | 8 |
| P20 | 1.2311 | Tool steels for cold work | 0.35–0.45 | 12 |
| P20+S | 1.2312 | Tool steels for cold work | 0.35–0.45 | 5 |
| P91 | 1.4903 | High-temperature steels | 0.08–0.12 | 4 |
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.