--- title: "ČSN steel grades — 647 designations — Page 11" description: "Steel grades designated under ČSN, with chemical composition, mechanical properties and equivalents in other standards. 647 designations across 451…" canonical: https://steelequivalents.com/materials/csn/page/11 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/csn/page/11.md cs: https://steelequivalents.com/cs/materiály/csn.md de: https://steelequivalents.com/de/werkstoffe/csn.md es: https://steelequivalents.com/es/materiales/csn.md fr: https://steelequivalents.com/fr/matériaux/csn.md hu: https://steelequivalents.com/hu/anyagok/csn.md it: https://steelequivalents.com/it/materiali/csn.md nl: https://steelequivalents.com/nl/materialen/csn.md pl: https://steelequivalents.com/pl/materiały/csn.md pt: https://steelequivalents.com/pt/materiais/csn.md ru: https://steelequivalents.com/ru/материалы/csn.md tr: https://steelequivalents.com/tr/malzemeler/csn.md zh: https://steelequivalents.com/zh/材料/csn.md ja: https://steelequivalents.com/ja/材料/csn.md ar: https://steelequivalents.com/ar/المواد/csn.md ko: https://steelequivalents.com/ko/재료/csn.md pt-br: https://steelequivalents.com/pt-br/materiais/csn.md hi: https://steelequivalents.com/hi/सामग्री/csn.md content_hash: sha256:41f44b9ff7f17f2d2aa678b9cdd52d365e908fcc2314f3e2df27354efa3e9138 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/csn/page/11 > Canonical URL: https://steelequivalents.com/materials/csn/page/11 > 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. ČSN · 647 grades # ČSN steel grades — 647 designations — Page 11 Every grade designated under ČSN, 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 647 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [19 901](/materials/csn/19-901 "19 901") | [1.2705](/materials/material-no/1.2705 "1.2705") | Others | 0.75–0.85 | 1 | | [19 901 FH](/materials/csn/19-901-fh "19 901 FH") | [1.2705](/materials/material-no/1.2705 "1.2705") | Others | 0.75–0.85 | 1 | | [19 XXX NN](/materials/csn/19-xxx-nn "19 XXX NN") | [1.2453](/materials/material-no/1.2453 "1.2453") | Tool steels for cold work | 1.25–1.35 | 5 | | [19 XXX NN](/materials/csn/19-xxx-nn "19 XXX NN") | [1.2726](/materials/material-no/1.2726 "1.2726") | Tool steels for hot work | 0.22–0.3 | 2 | | [19 XXX NN](/materials/csn/19-xxx-nn "19 XXX NN") | [1.1554](/materials/material-no/1.1554 "1.1554") | Unalloyed tool steels / carbon steels | 1–1.1 | 4 | | [19 XXX NN](/materials/csn/19-xxx-nn "19 XXX NN") | [1.2516](/materials/material-no/1.2516 "1.2516") | Tool steels for cold work | 1.15–1.25 | 2 | | [19065](/materials/csn/19065 "19065") | [1.1730](/materials/material-no/1.1730 "1.1730") | Unalloyed tool steels / carbon steels | 0.42–0.5 | 14 | | [19083](/materials/csn/19083 "19083") | [1.1730](/materials/material-no/1.1730 "1.1730") | Unalloyed tool steels / carbon steels | 0.42–0.5 | 14 | | [19103](/materials/csn/19103 "19103") | [1.1740](/materials/material-no/1.1740 "1.1740") | Unalloyed tool steels / carbon steels | 0.55–0.65 | 1 | | [19125](/materials/csn/19125 "19125") | [1.1744](/materials/material-no/1.1744 "1.1744") | Unalloyed tool steels / carbon steels | 0.64–0.72 | 1 | | [19132](/materials/csn/19132 "19132") | [1.1520](/materials/material-no/1.1520 "1.1520") | Unalloyed tool steels / carbon steels | 0.65–0.75 | 11 | | [19133](/materials/csn/19133 "19133") | [1.1520](/materials/material-no/1.1520 "1.1520") | Unalloyed tool steels / carbon steels | 0.65–0.75 | 11 | | [19133](/materials/csn/19133 "19133") | [1.1620](/materials/material-no/1.1620 "1.1620") | Unalloyed tool steels / carbon steels | 0.65–0.74 | 14 | | [19152](/materials/csn/19152 "19152") | [1.1525](/materials/material-no/1.1525 "1.1525") | Unalloyed tool steels / carbon steels | 0.75–0.85 | 20 | | [19191](/materials/csn/19191 "19191") | [1.1545](/materials/material-no/1.1545 "1.1545") | Unalloyed tool steels / carbon steels | 1–1.1 | 19 | | [19191](/materials/csn/19191 "19191") | [1.1645](/materials/material-no/1.1645 "1.1645") | Unalloyed tool steels / carbon steels | 1–1.1 | 18 | | [19192](/materials/csn/19192 "19192") | [1.1535](/materials/material-no/1.1535 "1.1535") | Unalloyed tool steels / carbon steels | 0.85–0.95 | 14 | | [19192](/materials/csn/19192 "19192") | [1.1645](/materials/material-no/1.1645 "1.1645") | Unalloyed tool steels / carbon steels | 1–1.1 | 18 | | [19221](/materials/csn/19221 "19221") | [1.1555](/materials/material-no/1.1555 "1.1555") | Unalloyed tool steels / carbon steels | 1.15–1.25 | 16 | | [19221](/materials/csn/19221 "19221") | [1.1554](/materials/material-no/1.1554 "1.1554") | Unalloyed tool steels / carbon steels | 1–1.1 | 4 | | [19222](/materials/csn/19222 "19222") | [1.1554](/materials/material-no/1.1554 "1.1554") | Unalloyed tool steels / carbon steels | 1–1.1 | 4 | | [19225](/materials/csn/19225 "19225") | [1.1555](/materials/material-no/1.1555 "1.1555") | Unalloyed tool steels / carbon steels | 1.15–1.25 | 16 | | [19312](/materials/csn/19312 "19312") | [1.2842](/materials/material-no/1.2842 "1.2842") | Tool steels for cold work | 0.85–0.95 | 14 | | [19313](/materials/csn/19313 "19313") | [1.2842](/materials/material-no/1.2842 "1.2842") | Tool steels for cold work | 0.85–0.95 | 14 | | [19314](/materials/csn/19314 "19314") | [1.2825](/materials/material-no/1.2825 "1.2825") | Tool steels for cold work | 0.9–1 | 13 | | [19356](/materials/csn/19356 "19356") | [1.2834](/materials/material-no/1.2834 "1.2834") | Tool steels for cold work | 1–1.1 | 5 | | [19419](/materials/csn/19419 "19419") | [1.2235](/materials/material-no/1.2235 "1.2235") | Tool steels for cold work | 0.75–0.85 | 13 | | [19421](/materials/csn/19421 "19421") | [1.2210](/materials/material-no/1.2210 "1.2210") | Tool steels for cold work | 1.1–1.25 | 13 | | [19421 przybliż.](/materials/csn/19421-przybliz "19421 przybliż.") | [1.2235](/materials/material-no/1.2235 "1.2235") | Tool steels for cold work | 0.75–0.85 | 13 | | [19423](/materials/csn/19423 "19423") | [1.2235](/materials/material-no/1.2235 "1.2235") | Tool steels for cold work | 0.75–0.85 | 13 | | [19435](/materials/csn/19435 "19435") | [1.4031](/materials/material-no/1.4031 "1.4031") | Stainless steels | 0.36–0.42 | 18 | | [19436](/materials/csn/19436 "19436") | [1.2080](/materials/material-no/1.2080 "1.2080") | Tool steels for cold work | 1.9–2.2 | 18 | | [19436](/materials/csn/19436 "19436") | [1.2060](/materials/material-no/1.2060 "1.2060") | Tool steels for cold work | 1–1.1 | 15 | | [19437](/materials/csn/19437 "19437") | [1.2436](/materials/material-no/1.2436 "1.2436") | Tool steels for cold work | 2–2.3 | 16 | | [19452](/materials/csn/19452 "19452") | [1.2101](/materials/material-no/1.2101 "1.2101") | Tool steels for cold work | 0.58–0.66 | 5 | | [19487](/materials/csn/19487 "19487") | [1.2162](/materials/material-no/1.2162 "1.2162") | Tool steels for cold work | 0.18–0.24 | 7 | | [19501](/materials/csn/19501 "19501") | [1.3537](/materials/material-no/1.3537 "1.3537") | Others | 0.93–1.05 | 4 | | [19520](/materials/csn/19520 "19520") | [1.2311](/materials/material-no/1.2311 "1.2311") | Tool steels for cold work | 0.35–0.45 | 12 | | [19520+S](/materials/csn/19520-s "19520+S") | [1.2312](/materials/material-no/1.2312 "1.2312") | Tool steels for cold work | 0.35–0.45 | 5 | | [19541](/materials/csn/19541 "19541") | [1.2365](/materials/material-no/1.2365 "1.2365") | Tool steels for hot work | 0.28–0.35 | 18 | | [19550](/materials/csn/19550 "19550") | [1.2355](/materials/material-no/1.2355 "1.2355") | Others | 0.45–0.55 | 2 | | [19552](/materials/csn/19552 "19552") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [19553](/materials/csn/19553 "19553") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [19554](/materials/csn/19554 "19554") | [1.2344](/materials/material-no/1.2344 "1.2344") | Tool steels for hot work | 0.35–0.42 | 20 | | [19569](/materials/csn/19569 "19569") | [1.2345](/materials/material-no/1.2345 "1.2345") | Tool steels for hot work | 0.48–0.53 | 3 | | [19571](/materials/csn/19571 "19571") | [1.2363](/materials/material-no/1.2363 "1.2363") | Tool steels for cold work | 0.95–1.05 | 16 | | [19571](/materials/csn/19571 "19571") | [1.2606](/materials/material-no/1.2606 "1.2606") | Tool steels for hot work | 0.32–0.4 | 8 | | [19571 PH](/materials/csn/19571-ph "19571 PH") | [1.2606](/materials/material-no/1.2606 "1.2606") | Tool steels for hot work | 0.32–0.4 | 8 | | [19571 przybliż.](/materials/csn/19571-przybliz "19571 przybliż.") | [1.2363](/materials/material-no/1.2363 "1.2363") | Tool steels for cold work | 0.95–1.05 | 16 | | [19572](/materials/csn/19572 "19572") | [1.2601](/materials/material-no/1.2601 "1.2601") | Tool steels for cold work | 1.55–1.75 | 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/csn/page/10 "Previous") Page 11 of 13[Next](/materials/csn/page/12 "Next")