--- title: "PN steel grades — 635 designations — Page 2" 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/2 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/pn/page/2.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:f9aceaccf94692e2bcb11801b6a50af01e6f82037d9f920bd71eeabeee726505 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/page/2 > Canonical URL: https://steelequivalents.com/materials/pn/page/2 > 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 2 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 | |---|---|---|---|---| | [12HN3A](/materials/pn/12hn3a "12HN3A") | [1.5732](/materials/material-no/1.5732 "1.5732") | Case hardening steels | 0.1–0.17 | 13 | | [12HN3A](/materials/pn/12hn3a "12HN3A") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [12HN3A](/materials/pn/12hn3a "12HN3A") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [13HMF](/materials/pn/13hmf "13HMF") | [1.7715](/materials/material-no/1.7715 "1.7715") | Heat-resistant structural steels | 0.1–0.18 | 8 | | [15](/materials/gb/15 "15") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [15](/materials/gb/15 "15") | [1.0401](/materials/material-no/1.0401 "1.0401") | Case hardening steels | 0.12–0.18 | 23 | | [15G](/materials/gost/15g "15G") | [1.0467](/materials/material-no/1.0467 "1.0467") | Others | 0.12–0.18 | 1 | | [15GA](/materials/pn/15ga "15GA") | [1.0445](/materials/material-no/1.0445 "1.0445") | Higher strength steels | — | 12 | | [15GA](/materials/pn/15ga "15GA") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [15GA](/materials/pn/15ga "15GA") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [15H](/materials/pn/15h "15H") | [1.7015](/materials/material-no/1.7015 "1.7015") | Case hardening steels | 0.12–0.18 | 15 | | [15H](/materials/pn/15h "15H") | [1.7016](/materials/material-no/1.7016 "1.7016") | Case hardening steels | 0.14–0.2 | 11 | | [15HG](/materials/pn/15hg "15HG") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [15HGM](/materials/pn/15hgm "15HGM") | [1.7243](/materials/material-no/1.7243 "1.7243") | Case hardening steels | 0.15–0.21 | 12 | | [15HGM](/materials/pn/15hgm "15HGM") | [1.3566](/materials/material-no/1.3566 "1.3566") | Others | 0.12–0.18 | 8 | | [15HGN](/materials/pn/15hgn "15HGN") | [1.5714](/materials/material-no/1.5714 "1.5714") | Case hardening steels | 0.13–0.19 | 6 | | [15HGN](/materials/pn/15hgn "15HGN") | [1.5715](/materials/material-no/1.5715 "1.5715") | Case hardening steels | 0.13–0.19 | 7 | | [15HGN](/materials/pn/15hgn "15HGN") | [1.5810](/materials/material-no/1.5810 "1.5810") | Case hardening steels | 0.16–0.21 | 2 | | [15HM](/materials/pn/15hm "15HM") | [1.7262](/materials/material-no/1.7262 "1.7262") | Case hardening steels | 0.13–0.17 | 18 | | [15HM](/materials/pn/15hm "15HM") | [1.7335](/materials/material-no/1.7335 "1.7335") | Heat-resistant structural steels | 0.08–0.18 | 22 | | [15HM](/materials/pn/15hm "15HM") | [1.7336](/materials/material-no/1.7336 "1.7336") | Heat-resistant structural steels | ≤ 0.17 | 6 | | [15HMF](/materials/pn/15hmf "15HMF") | [1.7715](/materials/material-no/1.7715 "1.7715") | Heat-resistant structural steels | 0.1–0.18 | 8 | | [15HMF](/materials/pn/15hmf "15HMF") | [1.7735](/materials/material-no/1.7735 "1.7735") | Quenched and tempered steels | 0.11–0.17 | 1 | | [15HMF](/materials/pn/15hmf "15HMF") | [1.8521](/materials/material-no/1.8521 "1.8521") | Nitriding steels | 0.13–0.18 | 1 | | [15HMF](/materials/pn/15hmf "15HMF") | [1.7745](/materials/material-no/1.7745 "1.7745") | Others | 0.1–0.16 | 1 | | [15HN](/materials/pn/15hn "15HN") | [1.5919](/materials/material-no/1.5919 "1.5919") | Case hardening steels | 0.12–0.18 | 11 | | [15HN](/materials/pn/15hn "15HN") | [1.5918](/materials/material-no/1.5918 "1.5918") | Case hardening steels | 0.14–0.2 | 3 | | [15HN](/materials/pn/15hn "15HN") | [1.6757](/materials/material-no/1.6757 "1.6757") | Others | 0.17–0.23 | 2 | | [15HN](/materials/pn/15hn "15HN") | [1.5924](/materials/material-no/1.5924 "1.5924") | Special steels for aviation and aerospace | 0.14–0.19 | 5 | | [15NCuMNb](/materials/pn/15ncumnb "15NCuMNb") | [1.6368](/materials/material-no/1.6368 "1.6368") | Heat-resistant structural steels | ≤ 0.17 | 4 | | [15NCuMNbA](/materials/pn/15ncumnba "15NCuMNbA") | [1.6368](/materials/material-no/1.6368 "1.6368") | Heat-resistant structural steels | ≤ 0.17 | 4 | | [15X](/materials/pn/15x "15X") | [1.0332](/materials/material-no/1.0332 "1.0332") | Unalloyed structural steels | ≤ 0.12 | 16 | | [16G2](/materials/gost/16g2 "16G2") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [16G2](/materials/gost/16g2 "16G2") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [16HG](/materials/pn/16hg "16HG") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [16HG](/materials/pn/16hg "16HG") | [1.7139](/materials/material-no/1.7139 "1.7139") | Case hardening steels | 0.14–0.19 | 11 | | [16HG](/materials/pn/16hg "16HG") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [16HG](/materials/pn/16hg "16HG") | [1.7149](/materials/material-no/1.7149 "1.7149") | Case hardening steels | 0.17–0.22 | 8 | | [16HG](/materials/pn/16hg "16HG") | [1.2162](/materials/material-no/1.2162 "1.2162") | Tool steels for cold work | 0.18–0.24 | 7 | | [16M](/materials/pn/16m "16M") | [1.5415](/materials/material-no/1.5415 "1.5415") | Heat-resistant structural steels | 0.12–0.2 | 15 | | [17HGM](/materials/pn/17hgm "17HGM") | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | | [17HGN](/materials/pn/17hgn "17HGN") | [1.5714](/materials/material-no/1.5714 "1.5714") | Case hardening steels | 0.13–0.19 | 6 | | [17HGN](/materials/pn/17hgn "17HGN") | [1.5715](/materials/material-no/1.5715 "1.5715") | Case hardening steels | 0.13–0.19 | 7 | | [17HNM](/materials/pn/17hnm "17HNM") | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | | [17HNM](/materials/pn/17hnm "17HNM") | [1.6566](/materials/material-no/1.6566 "1.6566") | Case hardening steels | 0.14–0.2 | 7 | | [18CuNMT](/materials/pn/18cunmt "18CuNMT") | [1.6368](/materials/material-no/1.6368 "1.6368") | Heat-resistant structural steels | ≤ 0.17 | 4 | | [18G2](/materials/pn/18g2 "18G2") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [18G2](/materials/pn/18g2 "18G2") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [18G2A](/materials/pn/18g2a "18G2A") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [18G2A](/materials/pn/18g2a "18G2A") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | **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 "Previous") Page 2 of 13[Next](/materials/pn/page/3 "Next")