--- title: "PN steel grades — 635 designations — Page 11" description: "Steel grades designated under PN, with chemical composition, mechanical properties and equivalents in other standards. 635 designations across 371…" canonical: https://steelequivalents.com/materials/pn/page/11 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/pn/page/11.md cs: https://steelequivalents.com/cs/materiály/pn.md de: https://steelequivalents.com/de/werkstoffe/pn.md es: https://steelequivalents.com/es/materiales/pn.md fr: https://steelequivalents.com/fr/matériaux/pn.md hu: https://steelequivalents.com/hu/anyagok/pn.md it: https://steelequivalents.com/it/materiali/pn.md nl: https://steelequivalents.com/nl/materialen/pn.md pl: https://steelequivalents.com/pl/materiały/pn.md pt: https://steelequivalents.com/pt/materiais/pn.md ru: https://steelequivalents.com/ru/материалы/pn.md tr: https://steelequivalents.com/tr/malzemeler/pn.md zh: https://steelequivalents.com/zh/材料/pn.md ja: https://steelequivalents.com/ja/材料/pn.md ar: https://steelequivalents.com/ar/المواد/pn.md ko: https://steelequivalents.com/ko/재료/pn.md pt-br: https://steelequivalents.com/pt-br/materiais/pn.md hi: https://steelequivalents.com/hi/सामग्री/pn.md content_hash: sha256:597f9667d10521cd74a55dcb7245bc3aa9d005674e00a424d1f2c74a748cfe17 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/pn/page/11 > Canonical URL: https://steelequivalents.com/materials/pn/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. PN · 635 grades # PN steel grades — 635 designations — Page 11 Every grade designated under PN, 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 635 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [NMWV](/materials/pn/nmwv "NMWV") | [1.2825](/materials/material-no/1.2825 "1.2825") | Tool steels for cold work | 0.9–1 | 13 | | [NMWV](/materials/pn/nmwv "NMWV") | [1.2510](/materials/material-no/1.2510 "1.2510") | Tool steels for cold work | 0.9–1.05 | 13 | | [NPW](/materials/pn/npw "NPW") | [1.2767](/materials/material-no/1.2767 "1.2767") | Tool steels for cold work | 0.4–0.5 | 9 | | [NPW](/materials/pn/npw "NPW") | [1.2766](/materials/material-no/1.2766 "1.2766") | Tool steels for hot work | 0.32–0.38 | 5 | | [NV](/materials/pn/nv "NV") | [1.2833](/materials/material-no/1.2833 "1.2833") | Tool steels for cold work | 0.95–1.05 | 7 | | [NW1](/materials/pn/nw1 "NW1") | [1.2414](/materials/material-no/1.2414 "1.2414") | Tool steels for cold work | 1.15–1.25 | 3 | | [NW1](/materials/pn/nw1 "NW1") | [1.2210](/materials/material-no/1.2210 "1.2210") | Tool steels for cold work | 1.1–1.25 | 13 | | [NWC](/materials/pn/nwc "NWC") | [1.2419](/materials/material-no/1.2419 "1.2419") | Tool steels for cold work | 1–1.1 | 16 | | [NZ2](/materials/pn/nz2 "NZ2") | [1.2542](/materials/material-no/1.2542 "1.2542") | Tool steels for cold work | 0.4–0.5 | 12 | | [NZ2](/materials/pn/nz2 "NZ2") | [1.2550](/materials/material-no/1.2550 "1.2550") | Tool steels for cold work | 0.55–0.65 | 15 | | [NZ3](/materials/pn/nz3 "NZ3") | [1.2550](/materials/material-no/1.2550 "1.2550") | Tool steels for cold work | 0.55–0.65 | 15 | | [NZ3](/materials/pn/nz3 "NZ3") | [1.2542](/materials/material-no/1.2542 "1.2542") | Tool steels for cold work | 0.4–0.5 | 12 | | [NZ4](/materials/pn/nz4 "NZ4") | [1.2360](/materials/material-no/1.2360 "1.2360") | Tool steels for hot work | 0.45–0.5 | 3 | | [OH13](/materials/pn/oh13 "OH13") | [1.4000](/materials/material-no/1.4000 "1.4000") | Stainless steels | ≤ 0.08 | 16 | | [OOH17N14M2](/materials/pn/ooh17n14m2 "OOH17N14M2") | [1.4404](/materials/material-no/1.4404 "1.4404") | Stainless steels | ≤ 0.03 | 25 | | [P40](/materials/pn/p40 "P40") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [R35](/materials/pn/r35 "R35") | [1.0301](/materials/material-no/1.0301 "1.0301") | Case hardening steels | 0.07–0.13 | 20 | | [R55](/materials/pn/r55 "R55") | [1.0507](/materials/material-no/1.0507 "1.0507") | Others | ≤ 0.2 | 8 | | [SK10V](/materials/pn/sk10v "SK10V") | [1.3207](/materials/material-no/1.3207 "1.3207") | High-speed steels | 1.2–1.35 | 14 | | [SK5M](/materials/ks/sk5m "SK5M") | [1.3243](/materials/material-no/1.3243 "1.3243") | High-speed steels | 0.87–0.95 | 19 | | [SK5V](/materials/pn/sk5v "SK5V") | [1.3202](/materials/material-no/1.3202 "1.3202") | High-speed steels | 1.3–1.45 | 12 | | [SK8M](/materials/pn/sk8m "SK8M") | [1.3247](/materials/material-no/1.3247 "1.3247") | High-speed steels | 1.05–1.15 | 14 | | [SS400](/materials/jis/ss400 "SS400") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [SS400](/materials/jis/ss400 "SS400") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [St0S](/materials/pn/st0s "St0S") | [1.0035](/materials/material-no/1.0035 "1.0035") | Unalloyed structural steels | — | 22 | | [St0S](/materials/pn/st0s "St0S") | [1.0034](/materials/material-no/1.0034 "1.0034") | Unalloyed structural steels | ≤ 0.15 | 12 | | [St36K](/materials/pn/st36k "St36K") | [1.0345](/materials/material-no/1.0345 "1.0345") | Heat-resistant structural steels | ≤ 0.16 | 18 | | [St36K](/materials/pn/st36k "St36K") | [1.0460](/materials/material-no/1.0460 "1.0460") | Heat-resistant structural steels | 0.18–0.23 | 4 | | [St36K](/materials/pn/st36k "St36K") | [1.0425](/materials/material-no/1.0425 "1.0425") | Heat-resistant structural steels | ≤ 0.2 | 20 | | [St3M](/materials/pn/st3m "St3M") | [1.0426](/materials/material-no/1.0426 "1.0426") | Aging resistant steels | 0.08–0.2 | 17 | | [St3S](/materials/pn/st3s "St3S") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3S](/materials/pn/st3s "St3S") | [1.0037](/materials/material-no/1.0037 "1.0037") | Unalloyed structural steels | ≤ 0.17 | 7 | | [St3S](/materials/pn/st3s "St3S") | [1.0037](/materials/material-no/1.0037 "1.0037") | Unalloyed structural steels | ≤ 0.17 | 4 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0040](/materials/material-no/1.0040 "1.0040") | Unalloyed structural steels | ≤ 0.25 | 8 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0037](/materials/material-no/1.0037 "1.0037") | Unalloyed structural steels | ≤ 0.17 | 7 | | [St3SX](/materials/pn/st3sx "St3SX") | [1.0037](/materials/material-no/1.0037 "1.0037") | Unalloyed structural steels | ≤ 0.17 | 4 | | [St3SY](/materials/pn/st3sy "St3SY") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3SY](/materials/pn/st3sy "St3SY") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [St3SY](/materials/pn/st3sy "St3SY") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [St3V](/materials/pn/st3v "St3V") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3V St3VY](/materials/pn/st3v-st3vy "St3V St3VY") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3VY](/materials/pn/st3vy "St3VY") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3W](/materials/pn/st3w "St3W") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [St3W](/materials/pn/st3w "St3W") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [St3W](/materials/pn/st3w "St3W") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [St3W](/materials/pn/st3w "St3W") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | **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/pn/page/10 "Previous") Page 11 of 13[Next](/materials/pn/page/12 "Next")