AFNOR steel grades — 1469 designations — Page 10
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 |
|---|---|---|---|---|
| A70-2 | 1.0070 | Unalloyed structural steels | — | 16 |
| AF Z12CN25-20 | 1.4845 | Heat resistant steels | ≤ 0.1 | 21 |
| AF Z12CN25-20 | 1.4843 | Resistance heating alloys | ≤ 0.2 | 9 |
| AF-34 | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| AF34 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| AF34C10 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| AF37C12 | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| AF42 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| AF42C20 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| AF50C30 | 1.0528 | Quenched and tempered steels | 0.27–0.34 | 14 |
| AF50C30 | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| AF55 | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| AF55C35 | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| AF60C40 | 1.0511 | Quenched and tempered steels | 0.37–0.44 | 21 |
| AF60C45 | 1.0511 | Quenched and tempered steels | 0.37–0.44 | 21 |
| AF65 | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| AF65C45 | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| AF70 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| AF70 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| AF70C55 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| AF70C55 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| AFNOT Z7CN18-09 This grade’s own name | 1.4301 | Stainless steels | ≤ 0.07 | 23 |
| AP | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| AP | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| AP | 1.0473 | Heat-resistant structural steels | 0.1–0.22 | 10 |
| AP | 1.0481 | Heat-resistant structural steels | 0.08–0.2 | 17 |
| BS1 | 1.0111 | Unalloyed structural steels | ≤ 0.16 | 5 |
| BS2 | 1.0423 | Heat-resistant structural steels | ≤ 0.19 | 6 |
| BS3 | 1.0437 | Others | ≤ 0.2 | 8 |
| BS4 | 1.0557 | Others | ≤ 0.2 | 4 |
| C | 1.0330 | Unalloyed structural steels | ≤ 0.12 | 17 |
| C10 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| C100RR | 1.1274 | Spring steels | 0.95–1.05 | 13 |
| C105E2U | 1.1535 | Unalloyed tool steels / carbon steels | 0.85–0.95 | 14 |
| C105E2U | 1.1545 | Unalloyed tool steels / carbon steels | 1–1.1 | 19 |
| C105E2U | 1.1645 | Unalloyed tool steels / carbon steels | 1–1.1 | 18 |
| C10RR | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| C10RR | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| C120E3U | 1.1645 | Unalloyed tool steels / carbon steels | 1–1.1 | 18 |
| C120E3U | 1.1563 | Unalloyed tool steels / carbon steels | 1.2–1.35 | 13 |
| C120E3U | 1.1555 | Unalloyed tool steels / carbon steels | 1.15–1.25 | 16 |
| C120E3UCr4 | 1.1224 | Others | 1.2–1.3 | 2 |
| C120E3UCr4 | 1.2002 | Tool steels for cold work | 1.2–1.3 | 2 |
| C120U | — | — | 1.15–1.24 | 7 |
| C125RR | 1.1224 | Others | 1.2–1.3 | 2 |
| C125RR | 1.2002 | Tool steels for cold work | 1.2–1.3 | 2 |
| C140E3U | 1.1563 | Unalloyed tool steels / carbon steels | 1.2–1.35 | 13 |
| C15E | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| C18RR | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| C18RR | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
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.