AISI / SAE steel grades — 2156 designations — Page 16
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. 19 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 |
|---|---|---|---|---|
| 4335 mod. This grade’s own name | 1.6723 | Special steels for defense technology | 0.13–0.18 | 2 |
| 4337 This grade’s own name | 1.6562 | Quenched and tempered steels | 0.37–0.44 | 10 |
| 4337 This grade’s own name | 1.6944 | Special steels for aviation and aerospace | 0.35–0.4 | 2 |
| 4337 | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| 434 This grade’s own name | 1.4113 | Stainless steels | ≤ 0.08 | 10 |
| 4340 | 1.6511 | Quenched and tempered steels | 0.32–0.4 | 18 |
| 4340 | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| 4340 | 1.6580 | Quenched and tempered steels | 0.26–0.34 | 15 |
| 4340 | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| 4340 | 1.6562 | Quenched and tempered steels | 0.37–0.44 | 10 |
| 4340 | 1.7707 | Quenched and tempered steels | 0.26–0.34 | 8 |
| 4340H This grade’s own name | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| 436 This grade’s own name | 1.4513 | Stainless steels | ≤ 0.025 | 4 |
| 436 This grade’s own name | 1.4526 | Stainless steels | ≤ 0.08 | 4 |
| 439 This grade’s own name | 1.4510 | Stainless steels | ≤ 0.05 | 14 |
| 439 | 1.4511 | Stainless steels | ≤ 0.05 | 11 |
| 440 C | 1.4112 | Stainless steels | 0.85–0.95 | 13 |
| 440A This grade’s own name | 1.4040 | Others | 0.6–0.75 | 6 |
| 440A This grade’s own name | 1.4109 | Stainless steels | 0.6–0.75 | 10 |
| 440A | 1.4125 | Stainless steels | 0.95–1.2 | 11 |
| 440A | 1.4112 | Stainless steels | 0.85–0.95 | 13 |
| 440A | 1.3543 | Bearing steels | 0.95–1.2 | 6 |
| 440A | 1.4528 | Stainless steels | 1–1.1 | 5 |
| 440B This grade’s own name | 1.4041 | Stainless steels | 0.75–0.95 | 6 |
| 440B This grade’s own name | 1.4112 | Stainless steels | 0.85–0.95 | 13 |
| 440B | 1.4125 | Stainless steels | 0.95–1.2 | 11 |
| 440B | 1.3543 | Bearing steels | 0.95–1.2 | 6 |
| 440B | 1.4528 | Stainless steels | 1–1.1 | 5 |
| 440B | 1.4109 | Stainless steels | 0.6–0.75 | 10 |
| 440C | 1.3544 | Bearing steels | 0.95–1.1 | 5 |
| 440C | 1.4023 | Others | 0.95–1.2 | 6 |
| 440C This grade’s own name | 1.4125 | Stainless steels | 0.95–1.2 | 11 |
| 440C | 1.3543 | Bearing steels | 0.95–1.2 | 6 |
| 440C | 1.4528 | Stainless steels | 1–1.1 | 5 |
| 440C | 1.4109 | Stainless steels | 0.6–0.75 | 10 |
| 440F | 1.4125 | Stainless steels | 0.95–1.2 | 11 |
| 440F | 1.4112 | Stainless steels | 0.85–0.95 | 13 |
| 440F | 1.3543 | Bearing steels | 0.95–1.2 | 6 |
| 440F | 1.4528 | Stainless steels | 1–1.1 | 5 |
| 440F | 1.4109 | Stainless steels | 0.6–0.75 | 10 |
| 440FSe | 1.4125 | Stainless steels | 0.95–1.2 | 11 |
| 441 | 1.4509 | Stainless steels | ≤ 0.03 | 4 |
| 4419 This grade’s own name | 1.5423 | Heat-resistant structural steels | 0.12–0.2 | 5 |
| 4419H This grade’s own name | 1.5423 | Heat-resistant structural steels | 0.12–0.2 | 5 |
| 442 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| 4422 This grade’s own name | 1.5419 | Heat-resistant structural steels | 0.15–0.23 | 2 |
| 443 This grade’s own name | 1.4521 | Stainless steels | ≤ 0.025 | 9 |
| 443 This grade’s own name | 1.4522 | Stainless steels | ≤ 0.025 | 2 |
| 444 This grade’s own name | 1.4521 | Stainless steels | ≤ 0.025 | 9 |
| 444 | 1.4605 | Heat resistant steels | ≤ 0.03 | 8 |
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.