--- title: "JIS steel grades — 2322 designations — Page 44" 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/44 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/jis/page/44.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:abecdf5e3d29903b2e367cd4d47fc6ea016eaceb600e99ca98d0972770b7ff2c generated: 2026-09-27 --- > **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/44 > Canonical URL: https://steelequivalents.com/materials/jis/page/44 > 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 44 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. 8 of 50 rows differ and carry an “Indicative” mark. ## Also known as 2322 designations | Grade | Category | C% by weight | Also in other standards | |---|---|---|---| | [SWCH27K](/materials/jis/swch27k "SWCH27K") | Cold extrusion steels | — | — | | [SWCH30K](/materials/jis/swch30k "SWCH30K") | Cold extrusion steels | — | — | | [SWCH33K](/materials/jis/swch33k "SWCH33K") | Cold extrusion steels | — | — | | [SWCH35K](/materials/jis/swch35k "SWCH35K") | Cold extrusion steels | — | — | | [SWCH38K](/materials/jis/swch38k "SWCH38K") | Cold extrusion steels | — | — | | [SWCH40K](/materials/jis/swch40k "SWCH40K") | Cold extrusion steels | — | — | | [SWCH41K](/materials/jis/swch41k "SWCH41K") | Cold extrusion steels | — | — | | [SWCH43K](/materials/jis/swch43k "SWCH43K") | Cold extrusion steels | — | — | | [SWCH45K](/materials/jis/swch45k "SWCH45K") | Cold extrusion steels | — | — | | [SWCH48K](/materials/jis/swch48k "SWCH48K") | Cold extrusion steels | — | — | | [SWCH50K](/materials/jis/swch50k "SWCH50K") | Cold extrusion steels | — | — | | [SWCH6A](/materials/jis/swch6a "SWCH6A") | Cold extrusion steels | — | — | | [SWCH6R](/materials/jis/swch6r "SWCH6R") | Cold extrusion steels | — | — | | [SWCH8A](/materials/jis/swch8a "SWCH8A") | Cold extrusion steels | — | — | | [SWCH8R](/materials/jis/swch8r "SWCH8R") | Cold extrusion steels | — | — | | [SWCHB223](/materials/jis/swchb223 "SWCHB223") | Cold extrusion steels | 0.2–0.26 | — | | [SWCHB237](/materials/jis/swchb237 "SWCHB237") | Cold extrusion steels | 0.34–0.4 | — | | [SWCHB320](/materials/jis/swchb320 "SWCHB320") | Cold extrusion steels | 0.17–0.23 | — | | [SWCHB323](/materials/jis/swchb323 "SWCHB323") | Cold extrusion steels | 0.2–0.26 | — | | [SWCHB331](/materials/jis/swchb331 "SWCHB331") | Cold extrusion steels | 0.28–0.34 | — | | [SWCHB334](/materials/jis/swchb334 "SWCHB334") | Cold extrusion steels | 0.31–0.37 | — | | [SWCHB420](/materials/jis/swchb420 "SWCHB420") | Cold extrusion steels | 0.17–0.23 | — | | [SWCHB526](/materials/jis/swchb526 "SWCHB526") | Cold extrusion steels | 0.23–0.29 | — | | [SWCHB620](/materials/jis/swchb620 "SWCHB620") | Cold extrusion steels | 0.17–0.23 | — | | [SWCHB623](/materials/jis/swchb623 "SWCHB623") | Cold extrusion steels | 0.2–0.26 | — | | [SWCHB726](/materials/jis/swchb726 "SWCHB726") | Cold extrusion steels | 0.23–0.29 | — | | [SWCHB734](/materials/jis/swchb734 "SWCHB734") | Cold extrusion steels | 0.31–0.37 | — | | [SWH400](/materials/jis/swh400 "SWH400") | Unalloyed structural steels | ≤ 0.2 | — | | [SWH400L](/materials/jis/swh400l "SWH400L") | Unalloyed structural steels | ≤ 0.2 | — | | [SWMR](/materials/jis/swmr "SWMR") Indicative | Case hardening steels | 0.07–0.13 | 20 | | [SWO-A](/materials/jis/swo-a "SWO-A") | Spring steels | 0.53–0.88 | 1 | | [SWO-B](/materials/jis/swo-b "SWO-B") | Spring steels | 0.53–0.88 | 1 | | [SWO-V](/materials/jis/swo-v "SWO-V") | Spring steels | 0.6–0.75 | 1 | | [SWOCV-V](/materials/jis/swocv-v "SWOCV-V") | Spring steels | 0.45–0.55 | 1 | | [SWOSC-B](/materials/jis/swosc-b "SWOSC-B") | Spring steels | 0.51–0.59 | 1 | | [SWOSC-V](/materials/jis/swosc-v "SWOSC-V") | Spring steels | 0.51–0.59 | 1 | | [SWOSM](/materials/jis/swosm "SWOSM") | Spring steels | 0.56–0.64 | 1 | | [SWR-7](/materials/jis/swr-7 "SWR-7") Indicative | Quenched and tempered steels | 0.57–0.65 | 25 | | [SWR1](/materials/jis/swr1 "SWR1") Indicative | Case hardening steels | 0.07–0.13 | 22 | | [SWRCH10A](/materials/jis/swrch10a "SWRCH10A") | Cold extrusion steels | 0.08–0.13 | 1 | | [SWRCH10A](/materials/jis/swrch10a "SWRCH10A") Indicative | — | 0.08–0.13 | 5 | | [SWRCH10K](/materials/jis/swrch10k "SWRCH10K") | Cold extrusion steels | 0.08–0.13 | 1 | | [SWRCH10K](/materials/jis/swrch10k "SWRCH10K") Indicative | Unalloyed structural steels | ≤ 0.1 | 11 | | [SWRCH10R](/materials/jis/swrch10r "SWRCH10R") | Cold extrusion steels | 0.08–0.13 | 1 | | [SWRCH10R](/materials/jis/swrch10r "SWRCH10R") Indicative | Unalloyed structural steels | ≤ 0.12 | 17 | | [SWRCH10R](/materials/jis/swrch10r "SWRCH10R") Indicative | Unalloyed structural steels | ≤ 0.1 | 11 | | [SWRCH12A](/materials/jis/swrch12a "SWRCH12A") | Cold extrusion steels | 0.1–0.15 | 1 | | [SWRCH12K](/materials/jis/swrch12k "SWRCH12K") | Cold extrusion steels | 0.1–0.15 | 1 | | [SWRCH12R](/materials/jis/swrch12r "SWRCH12R") | Cold extrusion steels | 0.1–0.15 | 1 | | [SWRCH12R](/materials/jis/swrch12r "SWRCH12R") Indicative | Unalloyed structural steels | ≤ 0.1 | 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. [Previous](/materials/jis/page/43 "Previous") Page 44 of 47[Next](/materials/jis/page/45 "Next")