--- title: "AFNOR steel grades — 1469 designations — Page 4" description: "Steel grades designated under AFNOR, with chemical composition, mechanical properties and equivalents in other standards. 1469 designations across…" canonical: https://steelequivalents.com/materials/afnor/page/4 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/afnor/page/4.md cs: https://steelequivalents.com/cs/materiály/afnor.md de: https://steelequivalents.com/de/werkstoffe/afnor.md es: https://steelequivalents.com/es/materiales/afnor.md fr: https://steelequivalents.com/fr/matériaux/afnor.md hu: https://steelequivalents.com/hu/anyagok/afnor.md it: https://steelequivalents.com/it/materiali/afnor.md nl: https://steelequivalents.com/nl/materialen/afnor.md pl: https://steelequivalents.com/pl/materiały/afnor.md pt: https://steelequivalents.com/pt/materiais/afnor.md ru: https://steelequivalents.com/ru/материалы/afnor.md tr: https://steelequivalents.com/tr/malzemeler/afnor.md zh: https://steelequivalents.com/zh/材料/afnor.md ja: https://steelequivalents.com/ja/材料/afnor.md ar: https://steelequivalents.com/ar/المواد/afnor.md ko: https://steelequivalents.com/ko/재료/afnor.md pt-br: https://steelequivalents.com/pt-br/materiais/afnor.md hi: https://steelequivalents.com/hi/सामग्री/afnor.md content_hash: sha256:7553306fe91205e13b17b41afe14aa5395438e9b93bf73618d1a8ffc487922e2 generated: 2026-09-24 --- > **Machine-readable Markdown rendering.** This is a Markdown representation of a web page, > served for AI agents and crawlers as a token-efficient alternative to the full HTML. > Full interactive HTML version: https://steelequivalents.com/materials/afnor/page/4 > Canonical URL: https://steelequivalents.com/materials/afnor/page/4 > Available languages: en, cs, de, es, fr, hu, it, nl, pl, pt, ru, tr, zh, ja, ar, ko, pt-br, hi > Change detection: `content_hash` is the SHA-256 of this document's Markdown body — everything > below this block, whitespace-trimmed, excluding the front-matter. Compare it to detect a real > content change; `generated` moves on every render and is not a change signal. AFNOR · 1,469 grades # 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 in other standards | |---|---|---|---|---| | [25 CD 4 (S)](/materials/afnor/25cd4s "25 CD 4 (S)") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [25CD4](/materials/afnor/25cd4 "25CD4") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [25CD4](/materials/afnor/25cd4 "25CD4") | [1.7214](/materials/material-no/1.7214 "1.7214") | Special steels for aviation and aerospace | 0.22–0.29 | 9 | | [25CD4](/materials/afnor/25cd4 "25CD4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [25CD4FF](/materials/afnor/25cd4ff "25CD4FF") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [25CD4FF](/materials/afnor/25cd4ff "25CD4FF") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [25CD4S](/materials/afnor/25cd4s "25CD4S") This grade’s own name | [1.7213](/materials/material-no/1.7213 "1.7213") | Others | 0.22–0.29 | 5 | | [25CD4u](/materials/afnor/25cd4u "25CD4u") | [1.7213](/materials/material-no/1.7213 "1.7213") | Others | 0.22–0.29 | 5 | | [25CrMo4](/materials/din-en/25crmo4 "25CrMo4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [25CrMo4](/materials/din-en/25crmo4 "25CrMo4") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [280-480M](/materials/afnor/280-480m "280-480M") | [1.0552](/materials/material-no/1.0552 "1.0552") | Others | ≤ 0.25 | 13 | | [28C4](/materials/afnor/28c4 "28C4") | [1.7030](/materials/material-no/1.7030 "1.7030") | Quenched and tempered steels | 0.24–0.31 | 12 | | [28CDV5](/materials/afnor/28cdv5 "28CDV5") | [1.7733](/materials/material-no/1.7733 "1.7733") | Heat-resistant structural steels | 0.2–0.28 | 15 | | [28MCB5](/materials/afnor/28mcb5 "28MCB5") | [1.7185](/materials/material-no/1.7185 "1.7185") | Quenched and tempered steels | 0.3–0.36 | 1 | | [28MCB5](/materials/afnor/28mcb5 "28MCB5") | [1.7182](/materials/material-no/1.7182 "1.7182") | Quenched and tempered steels | 0.24–0.3 | 1 | | [28Mn6](/materials/din-en/28mn6 "28Mn6") | [1.1170](/materials/material-no/1.1170 "1.1170") | Quenched and tempered steels | 0.25–0.32 | 16 | | [2C](/materials/afnor/2c "2C") | [1.0334](/materials/material-no/1.0334 "1.0334") | Unalloyed structural steels | ≤ 0.1 | 11 | | [2C22](/materials/afnor/2c22 "2C22") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [2C25](/materials/afnor/2c25 "2C25") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [2C35](/materials/afnor/2c35 "2C35") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [2C40](/materials/afnor/2c40 "2C40") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [2C45](/materials/afnor/2c45 "2C45") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [2C50](/materials/afnor/2c50 "2C50") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [2C55](/materials/afnor/2c55 "2C55") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [2C60](/materials/afnor/2c60 "2C60") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [2C60](/materials/afnor/2c60 "2C60") | [1.1221](/materials/material-no/1.1221 "1.1221") | Quenched and tempered steels | 0.57–0.65 | 18 | | [3.5Ni355](/materials/afnor/3-5ni355 "3.5Ni355") | [1.5637](/materials/material-no/1.5637 "1.5637") | Low-temperature structural steels | ≤ 0.15 | 11 | | [304F00](/materials/afnor/304f00 "304F00") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304F10](/materials/afnor/304f10 "304F10") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [308F80](/materials/afnor/308f80 "308F80") | [1.4828](/materials/material-no/1.4828 "1.4828") | Heat resistant steels | ≤ 0.2 | 20 | | [30CAD6.12](/materials/afnor/30cad6-12 "30CAD6.12") | [1.8507](/materials/material-no/1.8507 "1.8507") | Nitriding steels | 0.3–0.37 | 8 | | [30CD12](/materials/afnor/30cd12 "30CD12") | [1.8515](/materials/material-no/1.8515 "1.8515") | Nitriding steels | 0.28–0.35 | 8 | | [30CD12](/materials/afnor/30cd12 "30CD12") | [1.7361](/materials/material-no/1.7361 "1.7361") | Quenched and tempered steels | 0.28–0.35 | 7 | | [30CD4](/materials/afnor/30cd4 "30CD4") | [1.7214](/materials/material-no/1.7214 "1.7214") | Special steels for aviation and aerospace | 0.22–0.29 | 9 | | [30CD4](/materials/afnor/30cd4 "30CD4") | [1.7216](/materials/material-no/1.7216 "1.7216") | Low-temperature structural steels | 0.27–0.34 | 9 | | [30CD4](/materials/afnor/30cd4 "30CD4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [30CD4](/materials/afnor/30cd4 "30CD4") | [1.7230](/materials/material-no/1.7230 "1.7230") | Others | 0.3–0.37 | 8 | | [30CD4FF](/materials/afnor/30cd4ff "30CD4FF") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [30CND8](/materials/afnor/30cnd8 "30CND8") | [1.6580](/materials/material-no/1.6580 "1.6580") | Quenched and tempered steels | 0.26–0.34 | 15 | | [30Mn5](/materials/din-en/30mn5 "30Mn5") | [1.1165](/materials/material-no/1.1165 "1.1165") | Quenched and tempered steels | 0.25–0.32 | 16 | | [30NC11](/materials/afnor/30nc11 "30NC11") | [1.5755](/materials/material-no/1.5755 "1.5755") | Quenched and tempered steels | 0.27–0.35 | 9 | | [30NC11](/materials/afnor/30nc11 "30NC11") | [1.5736](/materials/material-no/1.5736 "1.5736") | Quenched and tempered steels | 0.32–0.4 | 3 | | [30NC11FF](/materials/afnor/30nc11ff "30NC11FF") | [1.5755](/materials/material-no/1.5755 "1.5755") | Quenched and tempered steels | 0.27–0.35 | 9 | | [30NC12](/materials/afnor/30nc12 "30NC12") | [1.5755](/materials/material-no/1.5755 "1.5755") | Quenched and tempered steels | 0.27–0.35 | 9 | | [30NC6](/materials/afnor/30nc6 "30NC6") | [1.5710](/materials/material-no/1.5710 "1.5710") | Quenched and tempered steels | 0.32–0.4 | 14 | | [30NC6](/materials/afnor/30nc6 "30NC6") | [1.5815](/materials/material-no/1.5815 "1.5815") | Others | 0.3–0.37 | 5 | | [30NC6](/materials/afnor/30nc6 "30NC6") | [1.5711](/materials/material-no/1.5711 "1.5711") | Others | 0.38–0.43 | 8 | | [30NCD12](/materials/afnor/30ncd12 "30NCD12") | [1.6655](/materials/material-no/1.6655 "1.6655") | Special steels for aviation and aerospace | 0.29–0.36 | 4 | | [30NCD12](/materials/afnor/30ncd12 "30NCD12") | [1.6743](/materials/material-no/1.6743 "1.6743") | Others | 0.28–0.36 | 4 | | [30NCD16](/materials/afnor/30ncd16 "30NCD16") | [1.6773](/materials/material-no/1.6773 "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. [Previous](/materials/afnor/page/3 "Previous") Page 4 of 30[Next](/materials/afnor/page/5 "Next")