--- title: "COPANT steel grades — 63 designations" description: "Steel grades designated under COPANT, with chemical composition, mechanical properties and equivalents in other standards. 63 designations across…" canonical: https://steelequivalents.com/materials/copant language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/copant.md cs: https://steelequivalents.com/cs/materiály/copant.md de: https://steelequivalents.com/de/werkstoffe/copant.md es: https://steelequivalents.com/es/materiales/copant.md fr: https://steelequivalents.com/fr/matériaux/copant.md hu: https://steelequivalents.com/hu/anyagok/copant.md it: https://steelequivalents.com/it/materiali/copant.md nl: https://steelequivalents.com/nl/materialen/copant.md pl: https://steelequivalents.com/pl/materiały/copant.md pt: https://steelequivalents.com/pt/materiais/copant.md ru: https://steelequivalents.com/ru/материалы/copant.md tr: https://steelequivalents.com/tr/malzemeler/copant.md zh: https://steelequivalents.com/zh/材料/copant.md ja: https://steelequivalents.com/ja/材料/copant.md ar: https://steelequivalents.com/ar/المواد/copant.md ko: https://steelequivalents.com/ko/재료/copant.md pt-br: https://steelequivalents.com/pt-br/materiais/copant.md hi: https://steelequivalents.com/hi/सामग्री/copant.md content_hash: sha256:c8bf1951d51c43e6441c34c26f02f5dac589c814135ba823eb3105af62abf204 generated: 2026-09-22 --- > **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/copant > Canonical URL: https://steelequivalents.com/materials/copant > 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. COPANT · 63 grades # COPANT steel grades — 63 designations Every grade designated under COPANT, 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 63 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [1010](/materials/aisi-sae/1010 "1010") | [1.0301](/materials/material-no/1.0301 "1.0301") | Case hardening steels | 0.07–0.13 | 20 | | [1016](/materials/aisi-sae/1016 "1016") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [1020](/materials/aisi-sae/1020 "1020") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [1025](/materials/aisi-sae/1025 "1025") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [1030](/materials/aisi-sae/1030 "1030") | [1.1178](/materials/material-no/1.1178 "1.1178") | Quenched and tempered steels | 0.27–0.34 | 13 | | [1038](/materials/aisi-sae/1038 "1038") | [1.1150](/materials/material-no/1.1150 "1.1150") | Others | 0.36–0.4 | 5 | | [1038](/materials/aisi-sae/1038 "1038") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | | [1038](/materials/aisi-sae/1038 "1038") | [1.9501](/materials/material-no/1.9501 "1.9501") | Others | 0.35–0.42 | 4 | | [1040](/materials/aisi-sae/1040 "1040") | [1.1186](/materials/material-no/1.1186 "1.1186") | Quenched and tempered steels | 0.37–0.44 | 16 | | [1045](/materials/aisi-sae/1045 "1045") | [1.1191](/materials/material-no/1.1191 "1.1191") | Quenched and tempered steels | 0.42–0.5 | 21 | | [1045](/materials/aisi-sae/1045 "1045") | [1.1191](/materials/material-no/1.1191 "1.1191") | Others | 0.42–0.5 | 18 | | [1050](/materials/aisi-sae/1050 "1050") | [1.1206](/materials/material-no/1.1206 "1.1206") | Quenched and tempered steels | 0.47–0.55 | 17 | | [1060](/materials/aisi-sae/1060 "1060") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [1070](/materials/aisi-sae/1070 "1070") | [1.1231](/materials/material-no/1.1231 "1.1231") | Spring steels | 0.65–0.73 | 18 | | [1080](/materials/aisi-sae/1080 "1080") | [1.0616](/materials/material-no/1.0616 "1.0616") | Spring steels | 0.83–0.88 | 8 | | [1080](/materials/aisi-sae/1080 "1080") | [1.1265](/materials/material-no/1.1265 "1.1265") | Spring steels | 0.84–0.88 | 5 | | [1080](/materials/aisi-sae/1080 "1080") | [1.9615](/materials/material-no/1.9615 "1.9615") | Spring steels | 0.75–0.88 | 5 | | [1095](/materials/aisi-sae/1095 "1095") | [1.1274](/materials/material-no/1.1274 "1.1274") | Spring steels | 0.95–1.05 | 13 | | [1117](/materials/aisi-sae/1117 "1117") | [1.0710](/materials/material-no/1.0710 "1.0710") | Free cutting steels | 0.12–0.18 | 5 | | [1117](/materials/aisi-sae/1117 "1117") | [1.0712](/materials/material-no/1.0712 "1.0712") | Free cutting steels | 0.14–0.2 | 4 | | [1117](/materials/aisi-sae/1117 "1117") | [1.0725](/materials/material-no/1.0725 "1.0725") | Free cutting steels | 0.12–0.18 | 5 | | [1117](/materials/aisi-sae/1117 "1117") | [1.9705](/materials/material-no/1.9705 "1.9705") | Others | 0.14–0.2 | 3 | | [1144](/materials/aisi-sae/1144 "1144") | [1.0762](/materials/material-no/1.0762 "1.0762") | Free cutting steels | 0.4–0.48 | 20 | | [1213](/materials/aisi-sae/1213 "1213") | [1.0715](/materials/material-no/1.0715 "1.0715") | Free cutting steels | ≤ 0.14 | 14 | | [1215](/materials/aisi-sae/1215 "1215") | [1.0736](/materials/material-no/1.0736 "1.0736") | Free cutting steels | ≤ 0.14 | 11 | | [12L14](/materials/aisi-sae/12l14 "12L14") | [1.0737](/materials/material-no/1.0737 "1.0737") | Free cutting steels | ≤ 0.14 | 8 | | [1541](/materials/aisi-sae/1541 "1541") | [1.1167](/materials/material-no/1.1167 "1.1167") | Quenched and tempered steels | 0.32–0.4 | 17 | | [4130](/materials/aisi-sae/4130 "4130") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [4140](/materials/aisi-sae/4140 "4140") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [4320](/materials/aisi-sae/4320 "4320") | [1.5919](/materials/material-no/1.5919 "1.5919") | Case hardening steels | 0.12–0.18 | 11 | | [4340](/materials/aisi-sae/4340 "4340") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [4820](/materials/aisi-sae/4820 "4820") | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | | [4820](/materials/aisi-sae/4820 "4820") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [4820](/materials/aisi-sae/4820 "4820") | [1.7149](/materials/material-no/1.7149 "1.7149") | Case hardening steels | 0.17–0.22 | 8 | | [5115](/materials/aisi-sae/5115 "5115") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [5120](/materials/aisi-sae/5120 "5120") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [5130](/materials/aisi-sae/5130 "5130") | [1.7030](/materials/material-no/1.7030 "1.7030") | Quenched and tempered steels | 0.24–0.31 | 12 | | [5135](/materials/aisi-sae/5135 "5135") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [5140](/materials/aisi-sae/5140 "5140") | [1.7035](/materials/material-no/1.7035 "1.7035") | Quenched and tempered steels | 0.38–0.45 | 18 | | [5150](/materials/aisi-sae/5150 "5150") | [1.7006](/materials/material-no/1.7006 "1.7006") | Quenched and tempered steels | 0.42–0.5 | 5 | | [5160](/materials/aisi-sae/5160 "5160") | [1.7176](/materials/material-no/1.7176 "1.7176") | Spring steels | 0.52–0.59 | 18 | | [52100](/materials/aisi-sae/52100 "52100") | [1.3505](/materials/material-no/1.3505 "1.3505") | Bearing steels | 0.93–1.05 | 22 | | [6150](/materials/aisi-sae/6150 "6150") | [1.8159](/materials/material-no/1.8159 "1.8159") | Quenched and tempered steels | 0.47–0.55 | 27 | | [8620](/materials/aisi-sae/8620 "8620") | [1.6523](/materials/material-no/1.6523 "1.6523") | Case hardening steels | 0.17–0.23 | 18 | | [8630](/materials/aisi-sae/8630 "8630") | [1.6545](/materials/material-no/1.6545 "1.6545") | Others | 0.27–0.34 | 3 | | [8640](/materials/aisi-sae/8640 "8640") | [1.6546](/materials/material-no/1.6546 "1.6546") | Quenched and tempered steels | 0.37–0.44 | 14 | | [8650](/materials/aisi-sae/8650 "8650") | [1.7228](/materials/material-no/1.7228 "1.7228") | Quenched and tempered steels | 0.46–0.54 | 12 | | [8660](/materials/aisi-sae/8660 "8660") | [1.6528](/materials/material-no/1.6528 "1.6528") | Others | 0.55–0.65 | 3 | | [9254](/materials/aisi-sae/9254 "9254") | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [9260](/materials/aisi-sae/9260 "9260") | [1.5027](/materials/material-no/1.5027 "1.5027") | Spring steels | 0.56–0.64 | 11 | **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. Page 1 of 2[Next](/materials/copant/page/2 "Next")