--- title: "PN steel grades — 635 designations — Page 3" 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/3 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/pn/page/3.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: sha256:19b9c854bcca5e8a9573b5723bb7e99517255537606c4b081612c68041883aa7 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/3 > Canonical URL: https://steelequivalents.com/materials/pn/page/3 > 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 3 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 | |---|---|---|---|---| | [18G2A](/materials/pn/18g2a "18G2A") | [1.0562](/materials/material-no/1.0562 "1.0562") | Fine-grain structural steels | ≤ 0.18 | 18 | | [18G2A](/materials/pn/18g2a "18G2A") | [1.0045](/materials/material-no/1.0045 "1.0045") | Unalloyed structural steels | ≤ 0.24 | 17 | | [18G2A](/materials/pn/18g2a "18G2A") | [1.0553](/materials/material-no/1.0553 "1.0553") | Unalloyed structural steels | ≤ 0.2 | 20 | | [18G2A](/materials/pn/18g2a "18G2A") | [1.0565](/materials/material-no/1.0565 "1.0565") | Fine-grain structural steels | ≤ 0.18 | 7 | | [18G2A](/materials/pn/18g2a "18G2A") | [1.0566](/materials/material-no/1.0566 "1.0566") | Fine-grain structural steels | ≤ 0.18 | 11 | | [18G2AA](/materials/pn/18g2aa "18G2AA") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [18G2AA](/materials/pn/18g2aa "18G2AA") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [18G2ACu](/materials/pn/18g2acu "18G2ACu") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [18G2ACu](/materials/pn/18g2acu "18G2ACu") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [18G2AV](/materials/pn/18g2av "18G2AV") | [1.8902](/materials/material-no/1.8902 "1.8902") | Fine-grain structural steels | ≤ 0.2 | 19 | | [18G2AV](/materials/pn/18g2av "18G2AV") | [1.8905](/materials/material-no/1.8905 "1.8905") | Fine-grain structural steels | ≤ 0.2 | 14 | | [18G2AV](/materials/pn/18g2av "18G2AV") | [1.5218](/materials/material-no/1.5218 "1.5218") | Others | 0.2–0.23 | 13 | | [18H2N2](/materials/pn/18h2n2 "18H2N2") | [1.5920](/materials/material-no/1.5920 "1.5920") | Case hardening steels | 0.15–0.2 | 6 | | [18H2N4WA](/materials/pn/18h2n4wa "18H2N4WA") | [1.6657](/materials/material-no/1.6657 "1.6657") | Special steels for aviation and aerospace | 0.11–0.17 | 15 | | [18H2N4WA](/materials/pn/18h2n4wa "18H2N4WA") | [1.2764](/materials/material-no/1.2764 "1.2764") | Tool steels for cold work | 0.16–0.22 | 3 | | [18HGM](/materials/pn/18hgm "18HGM") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [18HGM](/materials/pn/18hgm "18HGM") | [1.7262](/materials/material-no/1.7262 "1.7262") | Case hardening steels | 0.13–0.17 | 18 | | [18HGM](/materials/pn/18hgm "18HGM") | [1.7243](/materials/material-no/1.7243 "1.7243") | Case hardening steels | 0.15–0.21 | 12 | | [18HGM](/materials/pn/18hgm "18HGM") | [1.3566](/materials/material-no/1.3566 "1.3566") | Others | 0.12–0.18 | 8 | | [18HGT](/materials/pn/18hgt "18HGT") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [18HGT](/materials/pn/18hgt "18HGT") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [18HGT 20HG](/materials/pn/18hgt-20hg "18HGT 20HG") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [19G2](/materials/pn/19g2 "19G2") | [1.0482](/materials/material-no/1.0482 "1.0482") | Heat-resistant structural steels | 0.17–0.22 | 3 | | [19G2FA](/materials/pn/19g2fa "19G2FA") | [1.5218](/materials/material-no/1.5218 "1.5218") | Others | 0.2–0.23 | 13 | | [1H13](/materials/pn/1h13 "1H13") | [1.4006](/materials/material-no/1.4006 "1.4006") | Stainless steels | 0.08–0.15 | 26 | | [1H13](/materials/pn/1h13 "1H13") | [1.4005](/materials/material-no/1.4005 "1.4005") | Stainless steels | 0.08–0.15 | 14 | | [1H13](/materials/pn/1h13 "1H13") | [1.4024](/materials/material-no/1.4024 "1.4024") | Stainless steels | 0.12–0.17 | 13 | | [1H17N4G9](/materials/pn/1h17n4g9 "1H17N4G9") | [1.3965](/materials/material-no/1.3965 "1.3965") | Non-magnetic steels | ≤ 0.1 | 9 | | [1H17N4G9](/materials/pn/1h17n4g9 "1H17N4G9") | [1.4372](/materials/material-no/1.4372 "1.4372") | Others | ≤ 0.15 | 10 | | [1H17N4G9](/materials/pn/1h17n4g9 "1H17N4G9") | [1.4373](/materials/material-no/1.4373 "1.4373") | Non-magnetic steels | ≤ 0.15 | 13 | | [1H18N10T](/materials/pn/1h18n10t "1H18N10T") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [1H18N10T](/materials/pn/1h18n10t "1H18N10T") | [1.4878](/materials/material-no/1.4878 "1.4878") | Heat resistant steels | ≤ 0.1 | 14 | | [1H18N12T](/materials/pn/1h18n12t "1H18N12T") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [1H18N12T](/materials/pn/1h18n12t "1H18N12T") | [1.4878](/materials/material-no/1.4878 "1.4878") | Heat resistant steels | ≤ 0.1 | 14 | | [1H18N9](/materials/pn/1h18n9 "1H18N9") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [1H18N9](/materials/pn/1h18n9 "1H18N9") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [1H18N9](/materials/pn/1h18n9 "1H18N9") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [1H18N9](/materials/pn/1h18n9 "1H18N9") | [1.4325](/materials/material-no/1.4325 "1.4325") | Stainless steels | 0.03–0.15 | 11 | | [1H18N9T](/materials/pn/1h18n9t "1H18N9T") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [1H18N9T](/materials/pn/1h18n9t "1H18N9T") | [1.4878](/materials/material-no/1.4878 "1.4878") | Heat resistant steels | ≤ 0.1 | 14 | | [1H18N9T lub 0H18N10T 1H18N10T](/materials/pn/1h18n9t-lub-0h18n10t-1h18n10t "1H18N9T lub 0H18N10T 1H18N10T") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [20](/materials/bds/20 "20") | [1.1149](/materials/material-no/1.1149 "1.1149") | Quenched and tempered steels | 0.17–0.24 | 7 | | [20](/materials/bds/20 "20") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [20](/materials/bds/20 "20") | [1.1151](/materials/material-no/1.1151 "1.1151") | Quenched and tempered steels | 0.17–0.24 | 15 | | [20G](/materials/gb/20g "20G") | [1.0406](/materials/material-no/1.0406 "1.0406") | Quenched and tempered steels | 0.22–0.29 | 20 | | [20G](/materials/gb/20g "20G") | [1.1133](/materials/material-no/1.1133 "1.1133") | Quenched and tempered steels | 0.17–0.23 | 20 | | [20H](/materials/pn/20h "20H") | [1.7027](/materials/material-no/1.7027 "1.7027") | Case hardening steels | 0.17–0.23 | 12 | | [20H12M1F](/materials/pn/20h12m1f "20H12M1F") | [1.4922](/materials/material-no/1.4922 "1.4922") | High-temperature steels | 0.17–0.23 | 7 | | [20H12MIF](/materials/pn/20h12mif "20H12MIF") | [1.4923](/materials/material-no/1.4923 "1.4923") | High-temperature steels | 0.18–0.24 | 5 | | [20HG](/materials/pn/20hg "20HG") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | **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/2 "Previous") Page 3 of 13[Next](/materials/pn/page/4 "Next")