--- title: "UNE steel grades — 760 designations — Page 5" description: "Steel grades designated under UNE, with chemical composition, mechanical properties and equivalents in other standards. 760 designations across…" canonical: https://steelequivalents.com/materials/une/page/5 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/une/page/5.md cs: https://steelequivalents.com/cs/materiály/une.md de: https://steelequivalents.com/de/werkstoffe/une.md es: https://steelequivalents.com/es/materiales/une.md fr: https://steelequivalents.com/fr/matériaux/une.md hu: https://steelequivalents.com/hu/anyagok/une.md it: https://steelequivalents.com/it/materiali/une.md nl: https://steelequivalents.com/nl/materialen/une.md pl: https://steelequivalents.com/pl/materiały/une.md pt: https://steelequivalents.com/pt/materiais/une.md ru: https://steelequivalents.com/ru/материалы/une.md tr: https://steelequivalents.com/tr/malzemeler/une.md zh: https://steelequivalents.com/zh/材料/une.md ja: https://steelequivalents.com/ja/材料/une.md ar: https://steelequivalents.com/ar/المواد/une.md ko: https://steelequivalents.com/ko/재료/une.md pt-br: https://steelequivalents.com/pt-br/materiais/une.md hi: https://steelequivalents.com/hi/सामग्री/une.md content_hash: sha256:03e14ef00b8d6237485aca4266ea6cadf09557902ac67ae811d49efc8b7d2419 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/une/page/5 > Canonical URL: https://steelequivalents.com/materials/une/page/5 > 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. UNE · 760 grades # UNE steel grades — 760 designations — Page 5 Every grade designated under UNE, 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. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute. ## Also known as 760 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [AP12](/materials/une/ap12 "AP12") | [1.0334](/materials/material-no/1.0334 "1.0334") | Unalloyed structural steels | ≤ 0.1 | 11 | | [AP13](/materials/une/ap13 "AP13") | [1.0335](/materials/material-no/1.0335 "1.0335") | Unalloyed structural steels | ≤ 0.08 | 12 | | [AP13](/materials/une/ap13 "AP13") | [1.0322](/materials/material-no/1.0322 "1.0322") | Unalloyed structural steels | ≤ 0.12 | 17 | | [C 102](/materials/une/c102 "C 102") | [1.1274](/materials/material-no/1.1274 "1.1274") | Spring steels | 0.95–1.05 | 13 | | [C102](/materials/une/c102 "C102") | [1.1645](/materials/material-no/1.1645 "1.1645") | Unalloyed tool steels / carbon steels | 1–1.1 | 18 | | [C102](/materials/une/c102 "C102") | [1.1545](/materials/material-no/1.1545 "1.1545") | Unalloyed tool steels / carbon steels | 1–1.1 | 19 | | [C10E](/materials/din-en/c10e "C10E") | [1.1121](/materials/material-no/1.1121 "1.1121") | Case hardening steels | 0.07–0.13 | 22 | | [C10k](/materials/une/c10k "C10k") | [1.1121](/materials/material-no/1.1121 "1.1121") | Case hardening steels | 0.07–0.13 | 22 | | [C120](/materials/une/c120 "C120") | [1.1563](/materials/material-no/1.1563 "1.1563") | Unalloyed tool steels / carbon steels | 1.2–1.35 | 13 | | [C120](/materials/une/c120 "C120") | [1.1555](/materials/material-no/1.1555 "1.1555") | Unalloyed tool steels / carbon steels | 1.15–1.25 | 16 | | [C15E](/materials/din-en/c15e "C15E") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [C15K](/materials/une/c15k "C15K") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [C15k](/materials/une/c15k "C15k") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [C16k](/materials/une/c16k "C16k") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [C16k](/materials/une/c16k "C16k") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [C16k-1](/materials/une/c16k-1 "C16k-1") | [1.1140](/materials/material-no/1.1140 "1.1140") | Case hardening steels | 0.12–0.18 | 7 | | [C22](/materials/is/c22 "C22") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [C25E](/materials/din-en/c25e "C25E") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [C25k](/materials/une/c25k "C25k") | [1.1178](/materials/material-no/1.1178 "1.1178") | Quenched and tempered steels | 0.27–0.34 | 13 | | [C25k](/materials/une/c25k "C25k") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [C25k](/materials/une/c25k "C25k") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [C35](/materials/din-en/c35 "C35") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [C35E](/materials/din-en/c35e "C35E") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [C35k](/materials/une/c35k "C35k") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | | [C35k](/materials/une/c35k "C35k") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [C35k](/materials/une/c35k "C35k") | [1.1186](/materials/material-no/1.1186 "1.1186") | Quenched and tempered steels | 0.37–0.44 | 16 | | [C35K1](/materials/une/c35k1 "C35K1") | [1.1180](/materials/material-no/1.1180 "1.1180") | Quenched and tempered steels | 0.32–0.39 | 11 | | [C40E](/materials/din-en/c40e "C40E") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [C45](/materials/din-en/c45 "C45") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [C45E](/materials/din-en/c45e "C45E") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [C45k](/materials/une/c45k "C45k") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [C45k](/materials/une/c45k "C45k") | [1.1206](/materials/material-no/1.1206 "1.1206") | Quenched and tempered steels | 0.47–0.55 | 17 | | [C45K](/materials/une/c45k "C45K") | [1.1191](/materials/material-no/1.1191 "1.1191") | Quenched and tempered steels | 0.42–0.5 | 21 | | [C45K](/materials/une/c45k "C45K") | [1.1191](/materials/material-no/1.1191 "1.1191") | Others | 0.42–0.5 | 18 | | [C45K1](/materials/une/c45k1 "C45K1") | [1.1201](/materials/material-no/1.1201 "1.1201") | Quenched and tempered steels | 0.42–0.5 | 11 | | [C48k](/materials/une/c48k "C48k") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [C50E](/materials/din-en/c50e "C50E") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [C55](/materials/din-en/c55 "C55") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [C55E](/materials/din-en/c55e "C55E") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [C55k](/materials/une/c55k "C55k") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [C55k](/materials/une/c55k "C55k") | [1.1221](/materials/material-no/1.1221 "1.1221") | Quenched and tempered steels | 0.57–0.65 | 18 | | [C55K](/materials/une/c55k "C55K") | [1.1203](/materials/material-no/1.1203 "1.1203") | Quenched and tempered steels | 0.52–0.6 | 15 | | [C55K1](/materials/une/c55k1 "C55K1") | [1.1209](/materials/material-no/1.1209 "1.1209") | Others | 0.52–0.6 | 8 | | [C60](/materials/din-en/c60 "C60") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [C60E](/materials/din-en/c60e "C60E") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [CMO](/materials/une/cmo "CMO") | [1.7243](/materials/material-no/1.7243 "1.7243") | Case hardening steels | 0.15–0.21 | 12 | | [CMO](/materials/une/cmo "CMO") | [1.3566](/materials/material-no/1.3566 "1.3566") | Others | 0.12–0.18 | 8 | | [Cr6](/materials/une/cr6 "Cr6") | [1.2067](/materials/material-no/1.2067 "1.2067") | Tool steels for cold work | 0.95–1.1 | 21 | | [Cr6](/materials/une/cr6 "Cr6") | [1.3505](/materials/material-no/1.3505 "1.3505") | Bearing steels | 0.93–1.05 | 22 | | [CrAIMo7](/materials/une/craimo7 "CrAIMo7") | [1.8509](/materials/material-no/1.8509 "1.8509") | Nitriding steels | 0.38–0.45 | 16 | **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/une/page/4 "Previous") Page 5 of 16[Next](/materials/une/page/6 "Next")