--- title: "STN steel grades — 184 designations — Page 4" description: "Steel grades designated under STN, with chemical composition, mechanical properties and equivalents in other standards. 184 designations across 178…" canonical: https://steelequivalents.com/materials/stn/page/4 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/stn/page/4.md cs: https://steelequivalents.com/cs/materiály/stn.md de: https://steelequivalents.com/de/werkstoffe/stn.md es: https://steelequivalents.com/es/materiales/stn.md fr: https://steelequivalents.com/fr/matériaux/stn.md hu: https://steelequivalents.com/hu/anyagok/stn.md it: https://steelequivalents.com/it/materiali/stn.md nl: https://steelequivalents.com/nl/materialen/stn.md pl: https://steelequivalents.com/pl/materiały/stn.md pt: https://steelequivalents.com/pt/materiais/stn.md ru: https://steelequivalents.com/ru/материалы/stn.md tr: https://steelequivalents.com/tr/malzemeler/stn.md zh: https://steelequivalents.com/zh/材料/stn.md ja: https://steelequivalents.com/ja/材料/stn.md ar: https://steelequivalents.com/ar/المواد/stn.md ko: https://steelequivalents.com/ko/재료/stn.md pt-br: https://steelequivalents.com/pt-br/materiais/stn.md hi: https://steelequivalents.com/hi/सामग्री/stn.md content_hash: sha256:c149b0849b4d6cf0248e4968a75980556e325699a3eeb1b990a3ad770bf52a28 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/stn/page/4 > Canonical URL: https://steelequivalents.com/materials/stn/page/4 > 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. STN · 184 grades # STN steel grades — 184 designations — Page 4 Every grade designated under STN, 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. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute. ## Also known as 184 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [19 152](/materials/csn/19152 "19 152") | [1.1525](/materials/material-no/1.1525 "1.1525") | Unalloyed tool steels / carbon steels | 0.75–0.85 | 20 | | [19 191](/materials/csn/19191 "19 191") | [1.1545](/materials/material-no/1.1545 "1.1545") | Unalloyed tool steels / carbon steels | 1–1.1 | 19 | | [19 221](/materials/csn/19221 "19 221") | [1.1555](/materials/material-no/1.1555 "1.1555") | Unalloyed tool steels / carbon steels | 1.15–1.25 | 16 | | [19 312](/materials/csn/19312 "19 312") | [1.2842](/materials/material-no/1.2842 "1.2842") | Tool steels for cold work | 0.85–0.95 | 14 | | [19 313](/materials/csn/19313 "19 313") | [1.2842](/materials/material-no/1.2842 "1.2842") | Tool steels for cold work | 0.85–0.95 | 14 | | [19 314](/materials/csn/19314 "19 314") | [1.2825](/materials/material-no/1.2825 "1.2825") | Tool steels for cold work | 0.9–1 | 13 | | [19 356](/materials/csn/19356 "19 356") | [1.2834](/materials/material-no/1.2834 "1.2834") | Tool steels for cold work | 1–1.1 | 5 | | [19 421](/materials/csn/19421 "19 421") | [1.2210](/materials/material-no/1.2210 "1.2210") | Tool steels for cold work | 1.1–1.25 | 13 | | [19 436](/materials/csn/19436 "19 436") | [1.2080](/materials/material-no/1.2080 "1.2080") | Tool steels for cold work | 1.9–2.2 | 18 | | [19 437](/materials/csn/19437 "19 437") | [1.2436](/materials/material-no/1.2436 "1.2436") | Tool steels for cold work | 2–2.3 | 16 | | [19 452](/materials/csn/19452 "19 452") | [1.2101](/materials/material-no/1.2101 "1.2101") | Tool steels for cold work | 0.58–0.66 | 5 | | [19 487](/materials/csn/19487 "19 487") | [1.2162](/materials/material-no/1.2162 "1.2162") | Tool steels for cold work | 0.18–0.24 | 7 | | [19 520](/materials/csn/19520 "19 520") | [1.2311](/materials/material-no/1.2311 "1.2311") | Tool steels for cold work | 0.35–0.45 | 12 | | [19 541](/materials/csn/19541 "19 541") | [1.2365](/materials/material-no/1.2365 "1.2365") | Tool steels for hot work | 0.28–0.35 | 18 | | [19 550](/materials/csn/19550 "19 550") | [1.2355](/materials/material-no/1.2355 "1.2355") | Others | 0.45–0.55 | 2 | | [19 552](/materials/csn/19552 "19 552") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [19 554](/materials/csn/19554 "19 554") | [1.2344](/materials/material-no/1.2344 "1.2344") | Tool steels for hot work | 0.35–0.42 | 20 | | [19 569](/materials/csn/19569 "19 569") | [1.2345](/materials/material-no/1.2345 "1.2345") | Tool steels for hot work | 0.48–0.53 | 3 | | [19 571](/materials/csn/19571 "19 571") | [1.2363](/materials/material-no/1.2363 "1.2363") | Tool steels for cold work | 0.95–1.05 | 16 | | [19 572](/materials/csn/19572 "19 572") | [1.2601](/materials/material-no/1.2601 "1.2601") | Tool steels for cold work | 1.55–1.75 | 15 | | [19 573](/materials/csn/19573 "19 573") | [1.2379](/materials/material-no/1.2379 "1.2379") | Tool steels for cold work | 1.45–1.6 | 20 | | [19 614](/materials/csn/19614 "19 614") | [1.2721](/materials/material-no/1.2721 "1.2721") | Tool steels for cold work | 0.45–0.55 | 4 | | [19 655](/materials/csn/19655 "19 655") | [1.2767](/materials/material-no/1.2767 "1.2767") | Tool steels for cold work | 0.4–0.5 | 9 | | [19 663](/materials/csn/19663 "19 663") | [1.2714](/materials/material-no/1.2714 "1.2714") | Tool steels for hot work | 0.5–0.6 | 15 | | [19 721](/materials/csn/19721 "19 721") | [1.2581](/materials/material-no/1.2581 "1.2581") | Tool steels for hot work | 0.25–0.35 | 18 | | [19 735](/materials/csn/19735 "19 735") | [1.2550](/materials/material-no/1.2550 "1.2550") | Tool steels for cold work | 0.55–0.65 | 15 | | [19 820](/materials/csn/19820 "19 820") | [1.3333](/materials/material-no/1.3333 "1.3333") | High-speed steels | 0.95–1.03 | 2 | | [19 824](/materials/csn/19824 "19 824") | [1.3355](/materials/material-no/1.3355 "1.3355") | High-speed steels | 0.73–0.83 | 22 | | [19 830](/materials/csn/19830 "19 830") | [1.3339](/materials/material-no/1.3339 "1.3339") | High-speed steels | 0.8–0.88 | 16 | | [19 830](/materials/csn/19830 "19 830") | [1.3553](/materials/material-no/1.3553 "1.3553") | Bearing steels | 0.78–0.86 | 2 | | [19 837](/materials/csn/19837 "19 837") | [1.3344](/materials/material-no/1.3344 "1.3344") | High-speed steels | 1.15–1.25 | 8 | | [19 852](/materials/csn/19852 "19 852") | [1.3243](/materials/material-no/1.3243 "1.3243") | High-speed steels | 0.87–0.95 | 19 | | [19 861](/materials/csn/19861 "19 861") | [1.3207](/materials/material-no/1.3207 "1.3207") | High-speed steels | 1.2–1.35 | 14 | | [415320](/materials/csn/415320 "415320") | [1.7733](/materials/material-no/1.7733 "1.7733") | Heat-resistant structural steels | 0.2–0.28 | 15 | **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/stn/page/3 "Previous") Page 4 of 4