AFNOR steel grades — 1469 designations — Page 4
Every grade designated under AFNOR, 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. 1 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
1469 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 25 CD 4 (S) | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 25CD4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 25CD4 | 1.7214 | Special steels for aviation and aerospace | 0.22–0.29 | 9 |
| 25CD4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 25CD4FF | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 25CD4FF | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 25CD4S This grade’s own name | 1.7213 | Others | 0.22–0.29 | 5 |
| 25CD4u | 1.7213 | Others | 0.22–0.29 | 5 |
| 25CrMo4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 25CrMo4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 280-480M | 1.0552 | Others | ≤ 0.25 | 13 |
| 28C4 | 1.7030 | Quenched and tempered steels | 0.24–0.31 | 12 |
| 28CDV5 | 1.7733 | Heat-resistant structural steels | 0.2–0.28 | 15 |
| 28MCB5 | 1.7185 | Quenched and tempered steels | 0.3–0.36 | 1 |
| 28MCB5 | 1.7182 | Quenched and tempered steels | 0.24–0.3 | 1 |
| 28Mn6 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 2C | 1.0334 | Unalloyed structural steels | ≤ 0.1 | 11 |
| 2C22 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| 2C25 | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| 2C35 | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| 2C40 | 1.0511 | Quenched and tempered steels | 0.37–0.44 | 21 |
| 2C45 | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| 2C50 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| 2C55 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| 2C60 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| 2C60 | 1.1221 | Quenched and tempered steels | 0.57–0.65 | 18 |
| 3.5Ni355 | 1.5637 | Low-temperature structural steels | ≤ 0.15 | 11 |
| 304F00 | 1.4301 | Stainless steels | ≤ 0.07 | 23 |
| 304F10 | 1.4306 | Stainless steels | ≤ 0.03 | 18 |
| 308F80 | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
| 30CAD6.12 | 1.8507 | Nitriding steels | 0.3–0.37 | 8 |
| 30CD12 | 1.8515 | Nitriding steels | 0.28–0.35 | 8 |
| 30CD12 | 1.7361 | Quenched and tempered steels | 0.28–0.35 | 7 |
| 30CD4 | 1.7214 | Special steels for aviation and aerospace | 0.22–0.29 | 9 |
| 30CD4 | 1.7216 | Low-temperature structural steels | 0.27–0.34 | 9 |
| 30CD4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 30CD4 | 1.7230 | Others | 0.3–0.37 | 8 |
| 30CD4FF | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 30CND8 | 1.6580 | Quenched and tempered steels | 0.26–0.34 | 15 |
| 30Mn5 | 1.1165 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 30NC11 | 1.5755 | Quenched and tempered steels | 0.27–0.35 | 9 |
| 30NC11 | 1.5736 | Quenched and tempered steels | 0.32–0.4 | 3 |
| 30NC11FF | 1.5755 | Quenched and tempered steels | 0.27–0.35 | 9 |
| 30NC12 | 1.5755 | Quenched and tempered steels | 0.27–0.35 | 9 |
| 30NC6 | 1.5710 | Quenched and tempered steels | 0.32–0.4 | 14 |
| 30NC6 | 1.5815 | Others | 0.3–0.37 | 5 |
| 30NC6 | 1.5711 | Others | 0.38–0.43 | 8 |
| 30NCD12 | 1.6655 | Special steels for aviation and aerospace | 0.29–0.36 | 4 |
| 30NCD12 | 1.6743 | Others | 0.28–0.36 | 4 |
| 30NCD16 | 1.6773 | Quenched and tempered steels | 0.32–0.39 | 5 |
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.