--- title: "JIS steel grades — 2322 designations — Page 12" 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/12 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/jis/page/12.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:c9c9f6a67146a6b7492b5a6817ec96d56560d911f0771ebc187d39e9985b3921 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/12 > Canonical URL: https://steelequivalents.com/materials/jis/page/12 > 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 12 Every grade designated under JIS, with the identifying and comparative data we hold for each. Open a grade for its full composition, properties and its designations in other standards. Unless marked, every name here is an asserted identity — the same grade under this standard’s own designation. 12 of 50 rows differ and carry an “Indicative” mark. ## Also known as 2322 designations | Grade | Category | C% by weight | Also in other standards | |---|---|---|---| | [SCMnH2](/materials/jis/scmnh2 "SCMnH2") Indicative | Quenched and tempered steels | 1.1–1.3 | 19 | | [SCMnH21](/materials/jis/scmnh21 "SCMnH21") | Cast steel | 1–1.35 | — | | [SCMnH2X1](/materials/jis/scmnh2x1 "SCMnH2X1") | Cast steel | 0.9–1.05 | — | | [SCMnH2X2](/materials/jis/scmnh2x2 "SCMnH2X2") | Cast steel | 1.05–1.35 | — | | [SCMnH3](/materials/jis/scmnh3 "SCMnH3") | Cast steel | 0.9–1.2 | — | | [SCMnH3](/materials/jis/scmnh3 "SCMnH3") Indicative | Quenched and tempered steels | 1.1–1.3 | 19 | | [SCMnH31](/materials/jis/scmnh31 "SCMnH31") | Cast steel | 1.05–1.35 | — | | [SCMnH32](/materials/jis/scmnh32 "SCMnH32") | Cast steel | 0.75–1.35 | — | | [SCMnH33](/materials/jis/scmnh33 "SCMnH33") | Cast steel | 0.7–1 | — | | [SCMnH4](/materials/jis/scmnh4 "SCMnH4") | Cast steel | 1.05–1.35 | — | | [SCMnH41](/materials/jis/scmnh41 "SCMnH41") | Cast steel | 1.05–1.35 | — | | [SCMnM3](/materials/jis/scmnm3 "SCMnM3") | Cast steel | 0.3–0.4 | — | | [SCMQ4E](/materials/jis/scmq4e "SCMQ4E") | — | ≤ 0.17 | 1 | | [SCMQ4V](/materials/jis/scmq4v "SCMQ4V") | — | ≤ 0.17 | 1 | | [SCMQ5V](/materials/jis/scmq5v "SCMQ5V") | — | ≤ 0.17 | 1 | | [SCMV1](/materials/jis/scmv1 "SCMV1") | — | ≤ 0.21 | 1 | | [SCMV2](/materials/jis/scmv2 "SCMV2") | — | ≤ 0.17 | 1 | | [SCMV3](/materials/jis/scmv3 "SCMV3") | — | ≤ 0.17 | 1 | | [SCMV4](/materials/jis/scmv4 "SCMV4") | — | ≤ 0.17 | 1 | | [SCMV4](/materials/jis/scmv4 "SCMV4") Indicative | Heat-resistant structural steels | 0.08–0.14 | 20 | | [SCMV5](/materials/jis/scmv5 "SCMV5") | — | ≤ 0.17 | 1 | | [SCMV6](/materials/jis/scmv6 "SCMV6") | — | ≤ 0.15 | 1 | | [SCNCrM2](/materials/jis/scncrm2 "SCNCrM2") | Cast steel | 0.25–0.35 | — | | [SCNM439](/materials/jis/scnm439 "SCNM439") Indicative | Quenched and tempered steels | 0.32–0.4 | 18 | | [SCPH1](/materials/jis/scph1 "SCPH1") | Cast steel | ≤ 0.25 | — | | [SCPH1](/materials/jis/scph1 "SCPH1") Indicative | Others | ≤ 0.11 | 13 | | [SCPH1-CF](/materials/jis/scph1-cf "SCPH1-CF") | Cast steel | ≤ 0.22 | — | | [SCPH11](/materials/jis/scph11 "SCPH11") | Cast steel | ≤ 0.25 | 1 | | [SCPH11-CF](/materials/jis/scph11-cf "SCPH11-CF") | Cast steel | ≤ 0.2 | — | | [SCPH2](/materials/jis/scph2 "SCPH2") | Cast steel | ≤ 0.3 | — | | [SCPH2-CF](/materials/jis/scph2-cf "SCPH2-CF") | Cast steel | ≤ 0.3 | — | | [SCPH21](/materials/jis/scph21 "SCPH21") | Cast steel | ≤ 0.2 | 1 | | [SCPH21](/materials/jis/scph21 "SCPH21") Indicative | Heat-resistant structural steels | 0.2–0.28 | 15 | | [SCPH21-CF](/materials/jis/scph21-cf "SCPH21-CF") | Cast steel | ≤ 0.15 | — | | [SCPH22](/materials/jis/scph22 "SCPH22") | Cast steel | ≤ 0.25 | — | | [SCPH23](/materials/jis/scph23 "SCPH23") | Cast steel | ≤ 0.2 | — | | [SCPH32](/materials/jis/scph32 "SCPH32") | Cast steel | ≤ 0.2 | 1 | | [SCPH32-CF](/materials/jis/scph32-cf "SCPH32-CF") | Cast steel | ≤ 0.15 | — | | [SCPH61](/materials/jis/scph61 "SCPH61") | Cast steel | ≤ 0.2 | 1 | | [SCPL1](/materials/jis/scpl1 "SCPL1") | Cast steel | ≤ 0.3 | — | | [SCPL11](/materials/jis/scpl11 "SCPL11") | Cast steel | ≤ 0.25 | — | | [SCPL21](/materials/jis/scpl21 "SCPL21") | Cast steel | ≤ 0.25 | — | | [SCPL31](/materials/jis/scpl31 "SCPL31") | Cast steel | ≤ 0.15 | — | | [SCr 3 H](/materials/jis/scr-3-h "SCr 3 H") Indicative | Quenched and tempered steels | 0.34–0.41 | 23 | | [SCr 4 H](/materials/jis/scr-4-h "SCr 4 H") Indicative | Quenched and tempered steels | 0.38–0.45 | 18 | | [SCR 440H](/materials/ks/scr440h "SCR 440H") | Quenched and tempered steels | 0.38–0.45 | 13 | | [SCr2](/materials/jis/scr2 "SCr2") Indicative | Quenched and tempered steels | 0.24–0.31 | 12 | | [SCr3](/materials/jis/scr3 "SCr3") Indicative | Quenched and tempered steels | 0.34–0.41 | 23 | | [SCr35H](/materials/jis/scr35h "SCr35H") Indicative | Quenched and tempered steels | 0.34–0.41 | 23 | | [SCr4](/materials/jis/scr4 "SCr4") Indicative | Quenched and tempered steels | 0.34–0.41 | 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. [Previous](/materials/jis/page/11 "Previous") Page 12 of 47[Next](/materials/jis/page/13 "Next")