--- title: "SS steel grades — 373 designations — Page 5" description: "Steel grades designated under SS, with chemical composition, mechanical properties and equivalents in other standards. 373 designations across 242…" canonical: https://steelequivalents.com/materials/ss/page/5 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/ss/page/5.md cs: https://steelequivalents.com/cs/materiály/ss.md de: https://steelequivalents.com/de/werkstoffe/ss.md es: https://steelequivalents.com/es/materiales/ss.md fr: https://steelequivalents.com/fr/matériaux/ss.md hu: https://steelequivalents.com/hu/anyagok/ss.md it: https://steelequivalents.com/it/materiali/ss.md nl: https://steelequivalents.com/nl/materialen/ss.md pl: https://steelequivalents.com/pl/materiały/ss.md pt: https://steelequivalents.com/pt/materiais/ss.md ru: https://steelequivalents.com/ru/материалы/ss.md tr: https://steelequivalents.com/tr/malzemeler/ss.md zh: https://steelequivalents.com/zh/材料/ss.md ja: https://steelequivalents.com/ja/材料/ss.md ar: https://steelequivalents.com/ar/المواد/ss.md ko: https://steelequivalents.com/ko/재료/ss.md pt-br: https://steelequivalents.com/pt-br/materiais/ss.md hi: https://steelequivalents.com/hi/सामग्री/ss.md content_hash: sha256:2ca1e4cd5e0fbac5015f0bc27933363e936dfa7afe3b22c8447a80f41d4890f4 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/ss/page/5 > Canonical URL: https://steelequivalents.com/materials/ss/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. SS · 373 grades # SS steel grades — 373 designations — Page 5 Every grade designated under SS, 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 373 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [2240](/materials/ss/2240 "2240") This grade’s own name | [1.8515](/materials/material-no/1.8515 "1.8515") | Nitriding steels | 0.28–0.35 | 8 | | [2240](/materials/ss/2240 "2240") | [1.7361](/materials/material-no/1.7361 "1.7361") | Quenched and tempered steels | 0.28–0.35 | 7 | | [2242](/materials/ss/2242 "2242") | [1.2344](/materials/material-no/1.2344 "1.2344") | Tool steels for hot work | 0.35–0.42 | 20 | | [2244](/materials/ss/2244 "2244") | [1.7223](/materials/material-no/1.7223 "1.7223") | Steels for surface hardening | 0.38–0.44 | 13 | | [2244](/materials/ss/2244 "2244") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [2244](/materials/ss/2244 "2244") | [1.2330](/materials/material-no/1.2330 "1.2330") | Others | 0.32–0.37 | 8 | | [2245](/materials/ss/2245 "2245") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [2245](/materials/ss/2245 "2245") | [1.7039](/materials/material-no/1.7039 "1.7039") | Quenched and tempered steels | 0.38–0.45 | 13 | | [2245](/materials/ss/2245 "2245") | [1.7045](/materials/material-no/1.7045 "1.7045") | Steels for surface hardening | 0.38–0.44 | 9 | | [2245](/materials/ss/2245 "2245") | [1.7035](/materials/material-no/1.7035 "1.7035") | Quenched and tempered steels | 0.38–0.45 | 18 | | [2253](/materials/ss/2253 "2253") | [1.7176](/materials/material-no/1.7176 "1.7176") | Spring steels | 0.52–0.59 | 18 | | [2258](/materials/ss/2258 "2258") | [1.2067](/materials/material-no/1.2067 "1.2067") | Tool steels for cold work | 0.95–1.1 | 21 | | [2258](/materials/ss/2258 "2258") | [1.3505](/materials/material-no/1.3505 "1.3505") | Bearing steels | 0.93–1.05 | 22 | | [2260](/materials/ss/2260 "2260") | [1.2363](/materials/material-no/1.2363 "1.2363") | Tool steels for cold work | 0.95–1.05 | 16 | | [23 31](/materials/ss/2331 "23 31") | [1.4319](/materials/material-no/1.4319 "1.4319") | Stainless steels | ≤ 0.07 | 11 | | [23 33](/materials/ss/2333 "23 33") | [1.4303](/materials/material-no/1.4303 "1.4303") | Stainless steels | ≤ 0.06 | 14 | | [23 61](/materials/ss/2361 "23 61") | [1.4843](/materials/material-no/1.4843 "1.4843") | Resistance heating alloys | ≤ 0.2 | 9 | | [23 67](/materials/ss/2367 "23 67") | [1.4439](/materials/material-no/1.4439 "1.4439") | Stainless steels | ≤ 0.03 | 8 | | [2301](/materials/ss/2301 "2301") | [1.4000](/materials/material-no/1.4000 "1.4000") | Stainless steels | ≤ 0.08 | 16 | | [2301](/materials/ss/2301 "2301") | [1.4001](/materials/material-no/1.4001 "1.4001") | Stainless steels | ≤ 0.08 | 10 | | [2301](/materials/ss/2301 "2301") | [1.4001](/materials/material-no/1.4001 "1.4001") | Others | ≤ 0.08 | 8 | | [2302](/materials/ss/2302 "2302") | [1.4006](/materials/material-no/1.4006 "1.4006") | Stainless steels | 0.08–0.15 | 26 | | [2302](/materials/ss/2302 "2302") | [1.4002](/materials/material-no/1.4002 "1.4002") | Stainless steels | ≤ 0.08 | 13 | | [2303](/materials/ss/2303 "2303") | [1.4021](/materials/material-no/1.4021 "1.4021") | Stainless steels | 0.16–0.25 | 18 | | [2304](/materials/ss/2304 "2304") | [1.4034](/materials/material-no/1.4034 "1.4034") | Stainless steels | 0.43–0.5 | 18 | | [2304](/materials/ss/2304 "2304") | [1.4028](/materials/material-no/1.4028 "1.4028") | Stainless steels | 0.26–0.35 | 18 | | [2304](/materials/ss/2304 "2304") | [1.4031](/materials/material-no/1.4031 "1.4031") | Stainless steels | 0.36–0.42 | 18 | | [2304](/materials/ss/2304 "2304") | [1.2083](/materials/material-no/1.2083 "1.2083") | Tool steels for cold work | 0.36–0.42 | 16 | | [2304-03](/materials/ss/2304-03 "2304-03") | [1.4028](/materials/material-no/1.4028 "1.4028") | Stainless steels | 0.26–0.35 | 18 | | [2310](/materials/ss/2310 "2310") | [1.2601](/materials/material-no/1.2601 "1.2601") | Tool steels for cold work | 1.55–1.75 | 15 | | [2310](/materials/ss/2310 "2310") | [1.2379](/materials/material-no/1.2379 "1.2379") | Tool steels for cold work | 1.45–1.6 | 20 | | [2311](/materials/gost/2311 "2311") | [1.2311](/materials/material-no/1.2311 "1.2311") | Tool steels for cold work | 0.35–0.45 | 12 | | [2312](/materials/gost/2312 "2312") | [1.2436](/materials/material-no/1.2436 "1.2436") | Tool steels for cold work | 2–2.3 | 16 | | [2312](/materials/gost/2312 "2312") | [1.2060](/materials/material-no/1.2060 "1.2060") | Tool steels for cold work | 1–1.1 | 15 | | [2312](/materials/gost/2312 "2312") | [1.2080](/materials/material-no/1.2080 "1.2080") | Tool steels for cold work | 1.9–2.2 | 18 | | [2313](/materials/ss/2313 "2313") | [1.2436](/materials/material-no/1.2436 "1.2436") | Tool steels for cold work | 2–2.3 | 16 | | [2314](/materials/ss/2314 "2314") | [1.4031](/materials/material-no/1.4031 "1.4031") | Stainless steels | 0.36–0.42 | 18 | | [2317](/materials/ss/2317 "2317") | [1.4922](/materials/material-no/1.4922 "1.4922") | High-temperature steels | 0.17–0.23 | 7 | | [2320](/materials/ss/2320 "2320") | [1.4016](/materials/material-no/1.4016 "1.4016") | Stainless steels | ≤ 0.08 | 18 | | [2320](/materials/ss/2320 "2320") | [1.4762](/materials/material-no/1.4762 "1.4762") | Heat resistant steels | ≤ 0.12 | 12 | | [2321](/materials/ss/2321 "2321") | [1.4057](/materials/material-no/1.4057 "1.4057") | Stainless steels | 0.12–0.22 | 17 | | [2322](/materials/ss/2322 "2322") | [1.4762](/materials/material-no/1.4762 "1.4762") | Heat resistant steels | ≤ 0.12 | 12 | | [2322](/materials/ss/2322 "2322") | [1.4749](/materials/material-no/1.4749 "1.4749") | Heat resistant steels | 0.15–0.2 | 10 | | [2322](/materials/ss/2322 "2322") | [1.4746](/materials/material-no/1.4746 "1.4746") | Others | ≤ 0.12 | 8 | | [2324](/materials/ss/2324 "2324") | [1.4460](/materials/material-no/1.4460 "1.4460") | Stainless steels | ≤ 0.05 | 10 | | [2325](/materials/ss/2325 "2325") | [1.4113](/materials/material-no/1.4113 "1.4113") | Stainless steels | ≤ 0.08 | 10 | | [2326](/materials/ss/2326 "2326") | [1.4521](/materials/material-no/1.4521 "1.4521") | Stainless steels | ≤ 0.025 | 9 | | [2326](/materials/ss/2326 "2326") | [1.4605](/materials/material-no/1.4605 "1.4605") | Heat resistant steels | ≤ 0.03 | 8 | | [2326](/materials/ss/2326 "2326") | [1.4523](/materials/material-no/1.4523 "1.4523") | Others | ≤ 0.03 | 8 | | [2326](/materials/ss/2326 "2326") | [1.4321](/materials/material-no/1.4321 "1.4321") | Others | ≤ 0.03 | 8 | **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/ss/page/4 "Previous") Page 5 of 8[Next](/materials/ss/page/6 "Next")