--- title: "JIS steel grades — 2322 designations — Page 5" 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/5 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/jis/page/5.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: sha256:7e43632f560fa877293528177956e2142d0ab29db32d9b5384124310dccea3f2 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/jis/page/5 > Canonical URL: https://steelequivalents.com/materials/jis/page/5 > 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 5 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. 4 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 | |---|---|---|---|---| | [S12C](/materials/jis/s12c "S12C") | [1.0214](/materials/material-no/1.0214 "1.0214") | Unalloyed structural steels | 0.08–0.12 | 4 | | [S12C](/materials/jis/s12c "S12C") | [1.0311](/materials/material-no/1.0311 "1.0311") | Unalloyed structural steels | 0.1–0.15 | 4 | | [S12C](/materials/jis/s12c "S12C") | [1.1124](/materials/material-no/1.1124 "1.1124") | Others | 0.1–0.14 | 4 | | [S12C](/materials/jis/s12c "S12C") | [1.1130](/materials/material-no/1.1130 "1.1130") | Others | 0.1–0.16 | 4 | | [S12C](/materials/jis/s12c "S12C") | [1.9311](/materials/material-no/1.9311 "1.9311") | Others | 0.1–0.15 | 4 | | [S12C](/materials/jis/s12c "S12C") | [1.0301](/materials/material-no/1.0301 "1.0301") | Case hardening steels | 0.07–0.13 | 20 | | [S15](/materials/jis/s15 "S15") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [S15C](/materials/jis/s15c "S15C") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [S15C](/materials/jis/s15c "S15C") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [S15C](/materials/jis/s15c "S15C") | [1.1132](/materials/material-no/1.1132 "1.1132") | Cold extrusion steels | 0.13–0.17 | 5 | | [S15CK](/materials/jis/s15ck "S15CK") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [S15CK](/materials/jis/s15ck "S15CK") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [S15CK](/materials/jis/s15ck "S15CK") | [1.1132](/materials/material-no/1.1132 "1.1132") | Cold extrusion steels | 0.13–0.17 | 5 | | [S17C](/materials/jis/s17c "S17C") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [S17C](/materials/jis/s17c "S17C") | [1.0416](/materials/material-no/1.0416 "1.0416") | Others | 0.15–0.2 | 17 | | [S17C](/materials/jis/s17c "S17C") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [S17C](/materials/jis/s17c "S17C") | [1.9413](/materials/material-no/1.9413 "1.9413") | Others | 0.15–0.2 | 4 | | [S20C](/materials/jis/s20c "S20C") | [1.1151](/materials/material-no/1.1151 "1.1151") | Quenched and tempered steels | 0.17–0.24 | 15 | | [S20C](/materials/jis/s20c "S20C") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [S20C](/materials/jis/s20c "S20C") | [1.0254](/materials/material-no/1.0254 "1.0254") | Unalloyed structural steels | ≤ 0.16 | 6 | | [S20CK](/materials/jis/s20ck "S20CK") This grade’s own name | — | — | 0.18–0.23 | — | | [S20CK](/materials/jis/s20ck "S20CK") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [S22C](/materials/jis/s22c "S22C") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [S22C](/materials/jis/s22c "S22C") | [1.1151](/materials/material-no/1.1151 "1.1151") | Quenched and tempered steels | 0.17–0.24 | 15 | | [S22C](/materials/jis/s22c "S22C") | [1.1152](/materials/material-no/1.1152 "1.1152") | Cold extrusion steels | 0.18–0.22 | 4 | | [S25C](/materials/jis/s25c "S25C") | [1.1158](/materials/material-no/1.1158 "1.1158") | Quenched and tempered steels | 0.22–0.29 | 12 | | [S25C](/materials/jis/s25c "S25C") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [S25C](/materials/jis/s25c "S25C") | [1.0415](/materials/material-no/1.0415 "1.0415") | Quenched and tempered steels | 0.24–0.29 | 6 | | [S25C](/materials/jis/s25c "S25C") | [1.1139](/materials/material-no/1.1139 "1.1139") | Quenched and tempered steels | 0.24–0.29 | 6 | | [S25C](/materials/jis/s25c "S25C") | [1.1163](/materials/material-no/1.1163 "1.1163") | Quenched and tempered steels | 0.22–0.29 | 6 | | [S25C](/materials/jis/s25c "S25C") | [1.9415](/materials/material-no/1.9415 "1.9415") | Quenched and tempered steels | 0.22–0.28 | 6 | | [S28C](/materials/jis/s28c "S28C") | [1.9416](/materials/material-no/1.9416 "1.9416") | Others | 0.25–0.31 | 4 | | [S28C](/materials/jis/s28c "S28C") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [S28C](/materials/jis/s28c "S28C") | [1.0528](/materials/material-no/1.0528 "1.0528") | Quenched and tempered steels | 0.27–0.34 | 14 | | [S30C](/materials/jis/s30c "S30C") | [1.0528](/materials/material-no/1.0528 "1.0528") | Quenched and tempered steels | 0.27–0.34 | 14 | | [S30C](/materials/jis/s30c "S30C") | [1.0530](/materials/material-no/1.0530 "1.0530") | Others | 0.3–0.35 | 7 | | [S30C](/materials/jis/s30c "S30C") | [1.1143](/materials/material-no/1.1143 "1.1143") | Quenched and tempered steels | 0.3–0.34 | 7 | | [S30C](/materials/jis/s30c "S30C") | [1.1178](/materials/material-no/1.1178 "1.1178") | Quenched and tempered steels | 0.27–0.34 | 13 | | [S30C](/materials/jis/s30c "S30C") | [1.1179](/materials/material-no/1.1179 "1.1179") | Quenched and tempered steels | 0.27–0.34 | 8 | | [S30C](/materials/jis/s30c "S30C") | [1.9416](/materials/material-no/1.9416 "1.9416") | Quenched and tempered steels | 0.28–0.34 | 7 | | [S30CM](/materials/jis/s30cm "S30CM") This grade’s own name | — | — | 0.27–0.33 | 1 | | [S33C](/materials/jis/s33c "S33C") This grade’s own name | — | — | 0.3–0.36 | — | | [S33C](/materials/jis/s33c "S33C") | [1.0528](/materials/material-no/1.0528 "1.0528") | Quenched and tempered steels | 0.27–0.34 | 14 | | [S35](/materials/jis/s35 "S35") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [S35C](/materials/jis/s35c "S35C") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | | [S35C](/materials/jis/s35c "S35C") | [1.1183](/materials/material-no/1.1183 "1.1183") | Steels for surface hardening | 0.33–0.39 | 7 | | [S35C](/materials/jis/s35c "S35C") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [S35CM](/materials/jis/s35cm "S35CM") This grade’s own name | — | — | 0.32–0.38 | 1 | | [S38C](/materials/jis/s38c "S38C") | [1.1150](/materials/material-no/1.1150 "1.1150") | Others | 0.36–0.4 | 5 | | [S38C](/materials/jis/s38c "S38C") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | **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/4 "Previous") Page 5 of 47[Next](/materials/jis/page/6 "Next")