--- title: "JIS steel grades — 2322 designations — Page 6" description: "Steel grades designated under JIS, with chemical composition, mechanical properties and equivalents in other standards. 2322 designations across…" canonical: https://steelequivalents.com/materials/jis/page/6 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/jis/page/6.md cs: https://steelequivalents.com/cs/materiály/jis.md de: https://steelequivalents.com/de/werkstoffe/jis.md es: https://steelequivalents.com/es/materiales/jis.md fr: https://steelequivalents.com/fr/matériaux/jis.md hu: https://steelequivalents.com/hu/anyagok/jis.md it: https://steelequivalents.com/it/materiali/jis.md nl: https://steelequivalents.com/nl/materialen/jis.md pl: https://steelequivalents.com/pl/materiały/jis.md pt: https://steelequivalents.com/pt/materiais/jis.md ru: https://steelequivalents.com/ru/материалы/jis.md tr: https://steelequivalents.com/tr/malzemeler/jis.md zh: https://steelequivalents.com/zh/材料/jis.md ja: https://steelequivalents.com/ja/材料/jis.md ar: https://steelequivalents.com/ar/المواد/jis.md ko: https://steelequivalents.com/ko/재료/jis.md pt-br: https://steelequivalents.com/pt-br/materiais/jis.md hi: https://steelequivalents.com/hi/सामग्री/jis.md content_hash: sha256:910640836e743ed0c9908bb004c6bfcf14d5566e56ac66f271f1d3b2eb3fce32 generated: 2026-09-25 --- > **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/jis/page/6 > Canonical URL: https://steelequivalents.com/materials/jis/page/6 > 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. JIS · 2,322 grades # JIS steel grades — 2322 designations — Page 6 Every grade designated under JIS, 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. 17 of 50 rows differ and carry a “This grade’s own name” mark. ## Also known as 2322 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [S38C](/materials/jis/s38c "S38C") | [1.9501](/materials/material-no/1.9501 "1.9501") | Others | 0.35–0.42 | 4 | | [S38C](/materials/jis/s38c "S38C") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [S40C](/materials/jis/s40c "S40C") | [1.1157](/materials/material-no/1.1157 "1.1157") | Quenched and tempered steels | 0.36–0.44 | 9 | | [S40C](/materials/jis/s40c "S40C") This grade’s own name | — | — | — | 3 | | [S40C](/materials/jis/s40c "S40C") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [S43C](/materials/jis/s43c "S43C") This grade’s own name | — | — | 0.4–0.46 | — | | [S43C](/materials/jis/s43c "S43C") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [S45C](/materials/jis/s45c "S45C") | [1.1191](/materials/material-no/1.1191 "1.1191") | Quenched and tempered steels | 0.42–0.5 | 21 | | [S45C](/materials/jis/s45c "S45C") | [1.1191](/materials/material-no/1.1191 "1.1191") | Others | 0.42–0.5 | 18 | | [S45C](/materials/jis/s45c "S45C") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [S45C](/materials/jis/s45c "S45C") This grade’s own name | — | — | — | 3 | | [S45C](/materials/jis/s45c "S45C") | [1.0912](/materials/material-no/1.0912 "1.0912") | Others | 0.42–0.5 | 11 | | [S45C przybliż.](/materials/jis/s45c-przybliz "S45C przybliż.") | [1.1730](/materials/material-no/1.1730 "1.1730") | Unalloyed tool steels / carbon steels | 0.42–0.5 | 14 | | [S45CM](/materials/jis/s45cm "S45CM") This grade’s own name | — | — | 0.42–0.48 | 1 | | [S48C](/materials/jis/s48c "S48C") This grade’s own name | — | — | 0.45–0.51 | — | | [S48C](/materials/jis/s48c "S48C") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [S48C](/materials/jis/s48c "S48C") | [1.0912](/materials/material-no/1.0912 "1.0912") | Others | 0.42–0.5 | 11 | | [S50C](/materials/jis/s50c "S50C") | [1.1213](/materials/material-no/1.1213 "1.1213") | Steels for surface hardening | 0.5–0.57 | 11 | | [S50C](/materials/jis/s50c "S50C") | [1.0540](/materials/material-no/1.0540 "1.0540") | Quenched and tempered steels | 0.47–0.55 | 13 | | [S50C](/materials/jis/s50c "S50C") | [1.1171](/materials/material-no/1.1171 "1.1171") | Others | 0.48–0.52 | 6 | | [S50C](/materials/jis/s50c "S50C") | [1.1201](/materials/material-no/1.1201 "1.1201") | Quenched and tempered steels | 0.42–0.5 | 11 | | [S50C](/materials/jis/s50c "S50C") | [1.1206](/materials/material-no/1.1206 "1.1206") | Quenched and tempered steels | 0.47–0.55 | 17 | | [S50C](/materials/jis/s50c "S50C") | [1.9505](/materials/material-no/1.9505 "1.9505") | Others | 0.46–0.53 | 6 | | [S50C](/materials/jis/s50c "S50C") | [1.1210](/materials/material-no/1.1210 "1.1210") | Steels for surface hardening | 0.5–0.57 | 8 | | [S50C](/materials/jis/s50c "S50C") | [1.0586](/materials/material-no/1.0586 "1.0586") | Steels for surface hardening | 0.48–0.53 | 7 | | [S50C](/materials/jis/s50c "S50C") | [1.1241](/materials/material-no/1.1241 "1.1241") | Steels for surface hardening | 0.47–0.55 | 8 | | [S50C](/materials/jis/s50c "S50C") | [1.9505](/materials/material-no/1.9505 "1.9505") | Steels for surface hardening | 0.48–0.55 | 6 | | [S50C](/materials/jis/s50c "S50C") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [S50C-CSP](/materials/jis/s50c-csp "S50C-CSP") This grade’s own name | — | Spring steels | 0.47–0.53 | 1 | | [S50CM](/materials/jis/s50cm "S50CM") This grade’s own name | — | — | 0.47–0.53 | 1 | | [S53C](/materials/jis/s53c "S53C") This grade’s own name | — | — | 0.5–0.56 | — | | [S53C](/materials/jis/s53c "S53C") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [S55C](/materials/jis/s55c "S55C") This grade’s own name | [1.1219](/materials/material-no/1.1219 "1.1219") | Unalloyed bearing steels | 0.52–0.6 | 3 | | [S55C](/materials/jis/s55c "S55C") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [S55C](/materials/jis/s55c "S55C") | [1.1203](/materials/material-no/1.1203 "1.1203") | Quenched and tempered steels | 0.52–0.6 | 15 | | [S55C-CSP](/materials/jis/s55c-csp "S55C-CSP") This grade’s own name | — | Spring steels | 0.52–0.58 | 1 | | [S55C-CSP](/materials/jis/s55c-csp "S55C-CSP") | [1.0535](/materials/material-no/1.0535 "1.0535") | Quenched and tempered steels | 0.52–0.6 | 21 | | [S55CM](/materials/jis/s55cm "S55CM") This grade’s own name | — | — | 0.52–0.58 | 1 | | [S58C](/materials/jis/s58c "S58C") | [1.1221](/materials/material-no/1.1221 "1.1221") | Quenched and tempered steels | 0.57–0.65 | 18 | | [S58C](/materials/jis/s58c "S58C") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [S58C](/materials/jis/s58c "S58C") | [1.1212](/materials/material-no/1.1212 "1.1212") | Others | 0.56–0.6 | 5 | | [S58C](/materials/jis/s58c "S58C") | [1.1228](/materials/material-no/1.1228 "1.1228") | Others | 0.58–0.62 | 5 | | [S58C](/materials/jis/s58c "S58C") This grade’s own name | — | — | — | 3 | | [S58C](/materials/jis/s58c "S58C") | [1.0612](/materials/material-no/1.0612 "1.0612") | Others | 0.63–0.68 | 12 | | [S60C](/materials/jis/s60c "S60C") This grade’s own name | — | — | 0.55–0.65 | — | | [S60C-CSP](/materials/jis/s60c-csp "S60C-CSP") This grade’s own name | — | Spring steels | 0.55–0.65 | 1 | | [S60C-CSP](/materials/jis/s60c-csp "S60C-CSP") | [1.0601](/materials/material-no/1.0601 "1.0601") | Quenched and tempered steels | 0.57–0.65 | 25 | | [S60CM](/materials/jis/s60cm "S60CM") This grade’s own name | — | — | 0.55–0.65 | 1 | | [S65C](/materials/jis/s65c "S65C") This grade’s own name | — | — | 0.6–0.7 | — | | [S65C-CSP](/materials/jis/s65c-csp "S65C-CSP") This grade’s own name | — | Spring steels | 0.6–0.7 | 1 | **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/jis/page/5 "Previous") Page 6 of 47[Next](/materials/jis/page/7 "Next")