--- title: "PN steel grades — 635 designations" 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 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/pn.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: sha256:55897b9764169c1ce04f6d563b45eeefea07b92add28942cd630075665e0fd92 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/pn > Canonical URL: https://steelequivalents.com/materials/pn > 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 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 | |---|---|---|---|---| | [00H17N13M2](/materials/pn/00h17n13m2 "00H17N13M2") | [1.4404](/materials/material-no/1.4404 "1.4404") | Stainless steels | ≤ 0.03 | 25 | | [00H17N14M2](/materials/pn/00h17n14m2 "00H17N14M2") | [1.4404](/materials/material-no/1.4404 "1.4404") | Stainless steels | ≤ 0.03 | 25 | | [00H17N14M2](/materials/pn/00h17n14m2 "00H17N14M2") | [1.4435](/materials/material-no/1.4435 "1.4435") | Stainless steels | ≤ 0.03 | 20 | | [00H17N14M2](/materials/pn/00h17n14m2 "00H17N14M2") | [1.4436](/materials/material-no/1.4436 "1.4436") | Stainless steels | ≤ 0.05 | 19 | | [00H17N14M2](/materials/pn/00h17n14m2 "00H17N14M2") | [1.4438](/materials/material-no/1.4438 "1.4438") | Stainless steels | ≤ 0.03 | 13 | | [00H17N14M2](/materials/pn/00h17n14m2 "00H17N14M2") | [1.4401](/materials/material-no/1.4401 "1.4401") | Stainless steels | ≤ 0.07 | 20 | | [00H18N10](/materials/pn/00h18n10 "00H18N10") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [00H18N10](/materials/pn/00h18n10 "00H18N10") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [00H18N10](/materials/pn/00h18n10 "00H18N10") | [1.4307](/materials/material-no/1.4307 "1.4307") | Stainless steels | ≤ 0.03 | 14 | | [00H18N10](/materials/pn/00h18n10 "00H18N10") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [00H18N10](/materials/pn/00h18n10 "00H18N10") | [1.4303](/materials/material-no/1.4303 "1.4303") | Stainless steels | ≤ 0.06 | 14 | | [00H18N10](/materials/pn/00h18n10 "00H18N10") | [1.4311](/materials/material-no/1.4311 "1.4311") | Stainless steels | ≤ 0.03 | 13 | | [00H22N24M4TCu](/materials/pn/00h22n24m4tcu "00H22N24M4TCu") | [1.4462](/materials/material-no/1.4462 "1.4462") | Stainless steels | ≤ 0.03 | 13 | | [00H22N24M4TCu](/materials/pn/00h22n24m4tcu "00H22N24M4TCu") | [1.4539](/materials/material-no/1.4539 "1.4539") | Stainless steels | ≤ 0.02 | 10 | | [05XA](/materials/pn/05xa "05XA") | [1.0314](/materials/material-no/1.0314 "1.0314") | Unalloyed structural steels | ≤ 0.03 | 14 | | [08J](/materials/pn/08j "08J") | [1.0338](/materials/material-no/1.0338 "1.0338") | Unalloyed structural steels | ≤ 0.08 | 18 | | [08J](/materials/pn/08j "08J") | [1.0332](/materials/material-no/1.0332 "1.0332") | Unalloyed structural steels | ≤ 0.12 | 16 | | [08JA](/materials/pn/08ja "08JA") | [1.0338](/materials/material-no/1.0338 "1.0338") | Unalloyed structural steels | ≤ 0.08 | 18 | | [08X](/materials/pn/08x "08X") | [1.1121](/materials/material-no/1.1121 "1.1121") | Case hardening steels | 0.07–0.13 | 22 | | [08X](/materials/pn/08x "08X") | [1.0322](/materials/material-no/1.0322 "1.0322") | Unalloyed structural steels | ≤ 0.12 | 17 | | [08Y](/materials/pn/08y "08Y") | [1.0330](/materials/material-no/1.0330 "1.0330") | Unalloyed structural steels | ≤ 0.12 | 17 | | [0H13](/materials/pn/0h13 "0H13") | [1.4000](/materials/material-no/1.4000 "1.4000") | Stainless steels | ≤ 0.08 | 16 | | [0H13](/materials/pn/0h13 "0H13") | [1.4001](/materials/material-no/1.4001 "1.4001") | Stainless steels | ≤ 0.08 | 10 | | [0H13](/materials/pn/0h13 "0H13") | [1.4001](/materials/material-no/1.4001 "1.4001") | Others | ≤ 0.08 | 8 | | [0H13J](/materials/pn/0h13j "0H13J") | [1.4002](/materials/material-no/1.4002 "1.4002") | Stainless steels | ≤ 0.08 | 13 | | [0H17N12M2T](/materials/pn/0h17n12m2t "0H17N12M2T") | [1.4401](/materials/material-no/1.4401 "1.4401") | Stainless steels | ≤ 0.07 | 20 | | [0H17T](/materials/pn/0h17t "0H17T") | [1.4510](/materials/material-no/1.4510 "1.4510") | Stainless steels | ≤ 0.05 | 14 | | [0H17T](/materials/pn/0h17t "0H17T") | [1.4511](/materials/material-no/1.4511 "1.4511") | Stainless steels | ≤ 0.05 | 11 | | [0H18N10](/materials/pn/0h18n10 "0H18N10") | [1.4311](/materials/material-no/1.4311 "1.4311") | Stainless steels | ≤ 0.03 | 13 | | [0H18N10T](/materials/pn/0h18n10t "0H18N10T") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [0H18N10T](/materials/pn/0h18n10t "0H18N10T") | [1.4878](/materials/material-no/1.4878 "1.4878") | Heat resistant steels | ≤ 0.1 | 14 | | [0H18N10T 1H18N9T 1H18N10T](/materials/pn/0h18n10t-1h18n9t-1h18n10t "0H18N10T 1H18N9T 1H18N10T") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [0H18N12Nb](/materials/pn/0h18n12nb "0H18N12Nb") | [1.4550](/materials/material-no/1.4550 "1.4550") | Stainless steels | ≤ 0.08 | 15 | | [0H18N12Nb](/materials/pn/0h18n12nb "0H18N12Nb") | [1.4961](/materials/material-no/1.4961 "1.4961") | High-temperature steels | 0.04–0.1 | 8 | | [0H18N9](/materials/pn/0h18n9 "0H18N9") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [0H18N9](/materials/pn/0h18n9 "0H18N9") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [0H18N9](/materials/pn/0h18n9 "0H18N9") | [1.4307](/materials/material-no/1.4307 "1.4307") | Stainless steels | ≤ 0.03 | 14 | | [0H18N9](/materials/pn/0h18n9 "0H18N9") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [0H18N9](/materials/pn/0h18n9 "0H18N9") | [1.4303](/materials/material-no/1.4303 "1.4303") | Stainless steels | ≤ 0.06 | 14 | | [0H18N9](/materials/pn/0h18n9 "0H18N9") | [1.4311](/materials/material-no/1.4311 "1.4311") | Stainless steels | ≤ 0.03 | 13 | | [0H22N24M4TCu](/materials/pn/0h22n24m4tcu "0H22N24M4TCu") | [1.4539](/materials/material-no/1.4539 "1.4539") | Stainless steels | ≤ 0.02 | 10 | | [10](/materials/gb/10 "10") | [1.0301](/materials/material-no/1.0301 "1.0301") | Case hardening steels | 0.07–0.13 | 20 | | [10](/materials/gb/10 "10") | [1.1121](/materials/material-no/1.1121 "1.1121") | Case hardening steels | 0.07–0.13 | 22 | | [10H](/materials/pn/10h "10H") | [1.8945](/materials/material-no/1.8945 "1.8945") | Weathering steels | ≤ 0.12 | 16 | | [10H2M](/materials/pn/10h2m "10H2M") | [1.7380](/materials/material-no/1.7380 "1.7380") | Heat-resistant structural steels | 0.08–0.14 | 20 | | [10H2M](/materials/pn/10h2m "10H2M") | [1.7383](/materials/material-no/1.7383 "1.7383") | Heat-resistant structural steels | 0.08–0.15 | 9 | | [10H2M](/materials/pn/10h2m "10H2M") | [1.7375](/materials/material-no/1.7375 "1.7375") | Heat-resistant structural steels | 0.1–0.15 | 6 | | [12H2N4A](/materials/pn/12h2n4a "12H2N4A") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [12H2N4A](/materials/pn/12h2n4a "12H2N4A") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [12HMF](/materials/pn/12hmf "12HMF") | [1.7715](/materials/material-no/1.7715 "1.7715") | Heat-resistant structural steels | 0.1–0.18 | 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. Page 1 of 13[Next](/materials/pn/page/2 "Next")