--- title: "PN steel grades — 635 designations — Page 5" 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/5 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/pn/page/5.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: sha256:074eca7fbbcd65e53d2566a95216356949538bc49ceccb673f961929ecd3012e generated: 2026-09-24 --- > **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/5 > Canonical URL: https://steelequivalents.com/materials/pn/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. PN · 635 grades # PN steel grades — 635 designations — Page 5 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 | |---|---|---|---|---| | [32HN3M](/materials/pn/32hn3m "32HN3M") | [1.6747](/materials/material-no/1.6747 "1.6747") | Quenched and tempered steels | 0.26–0.33 | 6 | | [33H2NMJ](/materials/pn/33h2nmj "33H2NMJ") | [1.8550](/materials/material-no/1.8550 "1.8550") | Nitriding steels | 0.3–0.37 | 3 | | [33H2NMJ](/materials/pn/33h2nmj "33H2NMJ") | [1.2891](/materials/material-no/1.2891 "1.2891") | Nitriding steels | 0.35 | 1 | | [33H3MF](/materials/pn/33h3mf "33H3MF") | [1.8519](/materials/material-no/1.8519 "1.8519") | Nitriding steels | 0.27–0.34 | 5 | | [33H3MF](/materials/pn/33h3mf "33H3MF") | [1.7707](/materials/material-no/1.7707 "1.7707") | Quenched and tempered steels | 0.26–0.34 | 8 | | [34HN3M](/materials/pn/34hn3m "34HN3M") | [1.6773](/materials/material-no/1.6773 "1.6773") | Quenched and tempered steels | 0.32–0.39 | 5 | | [34HN3M](/materials/pn/34hn3m "34HN3M") | [1.6747](/materials/material-no/1.6747 "1.6747") | Quenched and tempered steels | 0.26–0.33 | 6 | | [34HNM](/materials/pn/34hnm "34HNM") | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | | [34HNM](/materials/pn/34hnm "34HNM") | [1.6562](/materials/material-no/1.6562 "1.6562") | Quenched and tempered steels | 0.37–0.44 | 10 | | [34HNM](/materials/pn/34hnm "34HNM") | [1.6944](/materials/material-no/1.6944 "1.6944") | Special steels for aviation and aerospace | 0.35–0.4 | 2 | | [34HNMA](/materials/pn/34hnma "34HNMA") | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | | [35](/materials/gb/35 "35") | [1.1180](/materials/material-no/1.1180 "1.1180") | Quenched and tempered steels | 0.32–0.39 | 11 | | [35](/materials/gb/35 "35") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [35](/materials/gb/35 "35") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | | [35HM](/materials/pn/35hm "35HM") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [35HM](/materials/pn/35hm "35HM") | [1.2330](/materials/material-no/1.2330 "1.2330") | Others | 0.32–0.37 | 8 | | [35HMA](/materials/pn/35hma "35HMA") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [35SG](/materials/pn/35sg "35SG") | [1.5122](/materials/material-no/1.5122 "1.5122") | Quenched and tempered steels | 0.33–0.41 | 6 | | [36HNM](/materials/pn/36hnm "36HNM") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [36HNM](/materials/pn/36hnm "36HNM") | [1.6773](/materials/material-no/1.6773 "1.6773") | Quenched and tempered steels | 0.32–0.39 | 5 | | [36HNM](/materials/pn/36hnm "36HNM") | [1.6747](/materials/material-no/1.6747 "1.6747") | Quenched and tempered steels | 0.26–0.33 | 6 | | [37HGNM](/materials/pn/37hgnm "37HGNM") | [1.6546](/materials/material-no/1.6546 "1.6546") | Quenched and tempered steels | 0.37–0.44 | 14 | | [37HN3A](/materials/pn/37hn3a "37HN3A") | [1.5755](/materials/material-no/1.5755 "1.5755") | Quenched and tempered steels | 0.27–0.35 | 9 | | [38HA](/materials/pn/38ha "38HA") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [38HA](/materials/pn/38ha "38HA") | [1.7043](/materials/material-no/1.7043 "1.7043") | Steels for surface hardening | 0.34–0.4 | 3 | | [38HA](/materials/pn/38ha "38HA") | [1.7035](/materials/material-no/1.7035 "1.7035") | Quenched and tempered steels | 0.38–0.45 | 18 | | [38HMJ](/materials/pn/38hmj "38HMJ") | [1.8509](/materials/material-no/1.8509 "1.8509") | Nitriding steels | 0.38–0.45 | 16 | | [38HMJ](/materials/pn/38hmj "38HMJ") | [1.8507](/materials/material-no/1.8507 "1.8507") | Nitriding steels | 0.3–0.37 | 8 | | [38HNM](/materials/pn/38hnm "38HNM") | [1.6510](/materials/material-no/1.6510 "1.6510") | Others | 0.35–0.43 | 7 | | [3H13](/materials/pn/3h13 "3H13") | [1.4028](/materials/material-no/1.4028 "1.4028") | Stainless steels | 0.26–0.35 | 18 | | [3H13](/materials/pn/3h13 "3H13") | [1.4029](/materials/material-no/1.4029 "1.4029") | Stainless steels | 0.25–0.32 | 10 | | [3H14](/materials/pn/3h14 "3H14") | [1.4028](/materials/material-no/1.4028 "1.4028") | Stainless steels | 0.26–0.35 | 18 | | [3H14](/materials/pn/3h14 "3H14") | [1.4029](/materials/material-no/1.4029 "1.4029") | Stainless steels | 0.25–0.32 | 10 | | [3H17M](/materials/pn/3h17m "3H17M") | [1.4122](/materials/material-no/1.4122 "1.4122") | Stainless steels | 0.33–0.45 | 5 | | [3H17M](/materials/pn/3h17m "3H17M") | [1.4122](/materials/material-no/1.4122 "1.4122") | Stainless steels | 0.33–0.43 | 5 | | [3H17M](/materials/pn/3h17m "3H17M") | [1.2316](/materials/material-no/1.2316 "1.2316") | Tool steels for cold work | 0.33–0.45 | 4 | | [40](/materials/gb/40 "40") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [40](/materials/gb/40 "40") | [1.1186](/materials/material-no/1.1186 "1.1186") | Quenched and tempered steels | 0.37–0.44 | 16 | | [40A](/materials/pn/40a "40A") | [1.0511](/materials/material-no/1.0511 "1.0511") | Quenched and tempered steels | 0.37–0.44 | 21 | | [40H](/materials/pn/40h "40H") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [40H](/materials/pn/40h "40H") | [1.7035](/materials/material-no/1.7035 "1.7035") | Quenched and tempered steels | 0.38–0.45 | 18 | | [40H](/materials/pn/40h "40H") | [1.7043](/materials/material-no/1.7043 "1.7043") | Steels for surface hardening | 0.34–0.4 | 3 | | [40HA](/materials/pn/40ha "40HA") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [40HA](/materials/pn/40ha "40HA") | [1.7043](/materials/material-no/1.7043 "1.7043") | Steels for surface hardening | 0.34–0.4 | 3 | | [40HA](/materials/pn/40ha "40HA") | [1.7035](/materials/material-no/1.7035 "1.7035") | Quenched and tempered steels | 0.38–0.45 | 18 | | [40HM](/materials/pn/40hm "40HM") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [40HM](/materials/pn/40hm "40HM") | [1.7227](/materials/material-no/1.7227 "1.7227") | Quenched and tempered steels | 0.38–0.45 | 15 | | [40HNMA](/materials/pn/40hnma "40HNMA") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [40HNMA](/materials/pn/40hnma "40HNMA") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [40HNMA](/materials/pn/40hnma "40HNMA") | [1.6562](/materials/material-no/1.6562 "1.6562") | Quenched and tempered steels | 0.37–0.44 | 10 | **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/4 "Previous") Page 5 of 13[Next](/materials/pn/page/6 "Next")