--- title: "JIS steel grades — 2322 designations — Page 9" 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/9 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/jis/page/9.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: sha256:178161c957dc17a56f2568a428054241d5bb7e3cdedc9c574e5869a29b21aea1 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/9 > Canonical URL: https://steelequivalents.com/materials/jis/page/9 > 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 9 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. 7 of 50 rows differ and carry an “Indicative” mark. ## Also known as 2322 designations | Grade | Category | C% by weight | |---|---|---| | [SCH12](/materials/jis/sch12 "SCH12") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [SCH12X](/materials/jis/sch12x "SCH12X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH13](/materials/jis/sch13 "SCH13") | Heat-resistant cast steels | 0.2–0.5 | | [SCH13A](/materials/jis/sch13a "SCH13A") | Heat-resistant cast steels | 0.25–0.5 | | [SCH13A](/materials/jis/sch13a "SCH13A") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [SCH13X](/materials/jis/sch13x "SCH13X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH15](/materials/jis/sch15 "SCH15") | Heat-resistant cast steels | 0.35–0.7 | | [SCH15](/materials/jis/sch15 "SCH15") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [SCH15X](/materials/jis/sch15x "SCH15X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH16](/materials/jis/sch16 "SCH16") | Heat-resistant cast steels | 0.2–0.35 | | [SCH17](/materials/jis/sch17 "SCH17") | Heat-resistant cast steels | 0.2–0.5 | | [SCH17](/materials/jis/sch17 "SCH17") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [SCH18](/materials/jis/sch18 "SCH18") | Heat-resistant cast steels | 0.2–0.5 | | [SCH19](/materials/jis/sch19 "SCH19") | Heat-resistant cast steels | 0.2–0.5 | | [SCH1X](/materials/jis/sch1x "SCH1X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH2](/materials/jis/sch2 "SCH2") | Heat-resistant cast steels | ≤ 0.4 | | [SCH20](/materials/jis/sch20 "SCH20") | Heat-resistant cast steels | 0.35–0.75 | | [SCH20X](/materials/jis/sch20x "SCH20X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH20XNb](/materials/jis/sch20xnb "SCH20XNb") | Heat-resistant cast steels | 0.3–0.5 | | [SCH21](/materials/jis/sch21 "SCH21") | Heat-resistant cast steels | 0.25–0.35 | | [SCH22](/materials/jis/sch22 "SCH22") | Heat-resistant cast steels | 0.35–0.45 | | [SCH22](/materials/jis/sch22 "SCH22") Indicative | Heat-resistant cast steels | 0.3–0.5 | | [SCH22X](/materials/jis/sch22x "SCH22X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH23](/materials/jis/sch23 "SCH23") | Heat-resistant cast steels | 0.2–0.6 | | [SCH24](/materials/jis/sch24 "SCH24") | Heat-resistant cast steels | 0.35–0.75 | | [SCH24X](/materials/jis/sch24x "SCH24X") | Heat-resistant cast steels | 0.3–0.5 | | [SCH24XNb](/materials/jis/sch24xnb "SCH24XNb") | Heat-resistant cast steels | 0.3–0.5 | | [SCH2X1](/materials/jis/sch2x1 "SCH2X1") | Heat-resistant cast steels | 0.3–0.5 | | [SCH2X2](/materials/jis/sch2x2 "SCH2X2") | Heat-resistant cast steels | 0.3–0.5 | | [SCH3](/materials/jis/sch3 "SCH3") | Heat-resistant cast steels | ≤ 0.4 | | [SCH31](/materials/jis/sch31 "SCH31") | Heat-resistant cast steels | 0.15–0.35 | | [SCH31](/materials/jis/sch31 "SCH31") Indicative | Heat-resistant cast steels | 0.15–0.35 | | [SCH32](/materials/jis/sch32 "SCH32") | Heat-resistant cast steels | 0.15–0.35 | | [SCH33](/materials/jis/sch33 "SCH33") | Heat-resistant cast steels | 0.25–0.5 | | [SCH34](/materials/jis/sch34 "SCH34") | Heat-resistant cast steels | 0.05–0.12 | | [SCH4](/materials/jis/sch4 "SCH4") | Heat-resistant cast steels | 0.2–0.35 | | [SCH41](/materials/jis/sch41 "SCH41") | Heat-resistant cast steels | 0.35–0.6 | | [SCH42](/materials/jis/sch42 "SCH42") | Heat-resistant cast steels | 0.35–0.55 | | [SCH43](/materials/jis/sch43 "SCH43") | Heat-resistant cast steels | ≤ 0.1 | | [SCH44](/materials/jis/sch44 "SCH44") | Heat-resistant cast steels | 0.4–0.6 | | [SCH45](/materials/jis/sch45 "SCH45") | Heat-resistant cast steels | 0.35–0.65 | | [SCH46](/materials/jis/sch46 "SCH46") | Heat-resistant cast steels | 0.44–0.48 | | [SCH47](/materials/jis/sch47 "SCH47") | Heat-resistant cast steels | ≤ 0.5 | | [SCH5](/materials/jis/sch5 "SCH5") | Heat-resistant cast steels | 0.3–0.5 | | [SCH6](/materials/jis/sch6 "SCH6") | Heat-resistant cast steels | 1.2–1.4 | | [SCLE1](/materials/jis/scle1 "SCLE1") | Controlled-expansion nickel-iron alloys | — | | [SCLE2](/materials/jis/scle2 "SCLE2") | Controlled-expansion nickel-iron alloys | — | | [SCLE3](/materials/jis/scle3 "SCLE3") | Controlled-expansion nickel-iron alloys | — | | [SCLE4](/materials/jis/scle4 "SCLE4") | Controlled-expansion nickel-iron alloys | — | | [SCM 2](/materials/jis/scm2 "SCM 2") Indicative | Quenched and tempered steels | 0.22–0.29 | **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/8 "Previous") Page 9 of 47[Next](/materials/jis/page/10 "Next")