--- title: "JIS steel grades — 2322 designations — Page 33" 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/33 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/jis/page/33.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:c55144bcacd085decbb515fa4d5a2e0d2b5e761bc6be049c10534e3e4bd4a747 generated: 2026-09-26 --- > **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/33 > Canonical URL: https://steelequivalents.com/materials/jis/page/33 > 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 33 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. 1 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 | |---|---|---|---|---| | [SUP7](/materials/jis/sup7 "SUP7") | [1.5028](/materials/material-no/1.5028 "1.5028") | Spring steels | 0.6–0.7 | 11 | | [SUP7](/materials/jis/sup7 "SUP7") | [1.7108](/materials/material-no/1.7108 "1.7108") | Spring steels | 0.57–0.65 | 11 | | [SUP7](/materials/jis/sup7 "SUP7") | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [SUP7](/materials/jis/sup7 "SUP7") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [SUP7](/materials/jis/sup7 "SUP7") | [1.2826](/materials/material-no/1.2826 "1.2826") | Tool steels for cold work | 0.58–0.65 | 9 | | [SUP7](/materials/jis/sup7 "SUP7") | [1.7102](/materials/material-no/1.7102 "1.7102") | Spring steels | 0.51–0.59 | 14 | | [SUP7](/materials/jis/sup7 "SUP7") | [1.5092](/materials/material-no/1.5092 "1.5092") | Others | 0.55–0.66 | 8 | | [SUP9](/materials/jis/sup9 "SUP9") | [1.7176](/materials/material-no/1.7176 "1.7176") | Spring steels | 0.52–0.59 | 18 | | [SUP9](/materials/jis/sup9 "SUP9") | — | — | 0.56–0.64 | 2 | | [SUP9A](/materials/jis/sup9a "SUP9A") | [1.7176](/materials/material-no/1.7176 "1.7176") | Spring steels | 0.52–0.59 | 18 | | [SUP9M](/materials/jis/sup9m "SUP9M") This grade’s own name | — | — | 0.52–0.6 | 1 | | [SUS 202](/materials/jis/sus202 "SUS 202") | [1.3965](/materials/material-no/1.3965 "1.3965") | Non-magnetic steels | ≤ 0.1 | 9 | | [SUS 301](/materials/jis/sus301 "SUS 301") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [SUS 301](/materials/jis/sus301 "SUS 301") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [SUS 301](/materials/jis/sus301 "SUS 301") | [1.4325](/materials/material-no/1.4325 "1.4325") | Stainless steels | 0.03–0.15 | 11 | | [SUS 301 LN](/materials/jis/sus-301-ln "SUS 301 LN") | [1.4318](/materials/material-no/1.4318 "1.4318") | Stainless steels | ≤ 0.03 | 4 | | [SUS 301-CSP](/materials/jis/sus301-csp "SUS 301-CSP") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [SUS 302](/materials/jis/sus302 "SUS 302") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [SUS 302](/materials/jis/sus302 "SUS 302") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [SUS 302](/materials/jis/sus302 "SUS 302") | [1.4324](/materials/material-no/1.4324 "1.4324") | Special steels for aviation and aerospace | ≤ 0.12 | 7 | | [SUS 302](/materials/jis/sus302 "SUS 302") | [1.4325](/materials/material-no/1.4325 "1.4325") | Stainless steels | 0.03–0.15 | 11 | | [SUS 302](/materials/jis/sus302 "SUS 302") | [1.4948](/materials/material-no/1.4948 "1.4948") | High-temperature steels | 0.04–0.08 | 8 | | [SUS 302](/materials/jis/sus302 "SUS 302") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [SUS 302FB](/materials/jis/sus302fb "SUS 302FB") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [SUS 303Se](/materials/jis/sus-303se "SUS 303Se") | [1.4625](/materials/material-no/1.4625 "1.4625") | Others | ≤ 0.15 | 7 | | [SUS 304](/materials/ks/sus304 "SUS 304") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304-CSP](/materials/jis/sus304-csp "SUS 304-CSP") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304A](/materials/jis/sus304a "SUS 304A") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304FB](/materials/jis/sus304fb "SUS 304FB") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304L](/materials/jis/sus304l "SUS 304L") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [SUS 304LFB](/materials/jis/sus304lfb "SUS 304LFB") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [SUS 304LTB](/materials/jis/sus304ltb "SUS 304LTB") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [SUS 304LTBS](/materials/jis/sus304ltbs "SUS 304LTBS") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [SUS 304LTP](/materials/jis/sus304ltp "SUS 304LTP") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [SUS 304N1](/materials/jis/sus304n1 "SUS 304N1") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304N1](/materials/jis/sus304n1 "SUS 304N1") | [1.4315](/materials/material-no/1.4315 "1.4315") | Stainless steels | ≤ 0.06 | 5 | | [SUS 304N1](/materials/jis/sus304n1 "SUS 304N1") | [1.6907](/materials/material-no/1.6907 "1.6907") | Low-temperature steels | ≤ 0.04 | 5 | | [SUS 304TB](/materials/jis/sus304tb "SUS 304TB") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304TBS](/materials/jis/sus304tbs "SUS 304TBS") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304TKA](/materials/jis/sus304tka "SUS 304TKA") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304TKC](/materials/jis/sus304tkc "SUS 304TKC") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 304TP](/materials/jis/sus304tp "SUS 304TP") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [SUS 305 SUS 305J1](/materials/jis/sus-305-sus-305j1 "SUS 305 SUS 305J1") | [1.4303](/materials/material-no/1.4303 "1.4303") | Stainless steels | ≤ 0.06 | 14 | | [SUS 309S](/materials/jis/sus309s "SUS 309S") | [1.4833](/materials/material-no/1.4833 "1.4833") | Heat resistant steels | ≤ 0.15 | 15 | | [SUS 309S](/materials/jis/sus309s "SUS 309S") | [1.4950](/materials/material-no/1.4950 "1.4950") | Heat resistant steels | 0.04–0.08 | 7 | | [SUS 309STP](/materials/jis/sus309stp "SUS 309STP") | [1.4833](/materials/material-no/1.4833 "1.4833") | Heat resistant steels | ≤ 0.15 | 15 | | [SUS 310S](/materials/jis/sus310s "SUS 310S") | [1.4335](/materials/material-no/1.4335 "1.4335") | Stainless steels | ≤ 0.02 | 9 | | [SUS 310S](/materials/jis/sus310s "SUS 310S") | [1.4845](/materials/material-no/1.4845 "1.4845") | Heat resistant steels | ≤ 0.1 | 21 | | [SUS 310SFB](/materials/jis/sus310sfb "SUS 310SFB") | [1.4845](/materials/material-no/1.4845 "1.4845") | Heat resistant steels | ≤ 0.1 | 21 | | [SUS 310STP](/materials/jis/sus310stp "SUS 310STP") | [1.4845](/materials/material-no/1.4845 "1.4845") | Heat resistant steels | ≤ 0.1 | 21 | **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/32 "Previous") Page 33 of 47[Next](/materials/jis/page/34 "Next")