--- title: "GOST steel grades — 3544 designations — Page 63" description: "Steel grades designated under GOST, with chemical composition, mechanical properties and equivalents in other standards. 3544 designations across…" canonical: https://steelequivalents.com/materials/gost/page/63 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/gost/page/63.md cs: https://steelequivalents.com/cs/materiály/gost.md de: https://steelequivalents.com/de/werkstoffe/gost.md es: https://steelequivalents.com/es/materiales/gost.md fr: https://steelequivalents.com/fr/matériaux/gost.md hu: https://steelequivalents.com/hu/anyagok/gost.md it: https://steelequivalents.com/it/materiali/gost.md nl: https://steelequivalents.com/nl/materialen/gost.md pl: https://steelequivalents.com/pl/materiały/gost.md pt: https://steelequivalents.com/pt/materiais/gost.md ru: https://steelequivalents.com/ru/материалы/gost.md tr: https://steelequivalents.com/tr/malzemeler/gost.md zh: https://steelequivalents.com/zh/材料/gost.md ja: https://steelequivalents.com/ja/材料/gost.md ar: https://steelequivalents.com/ar/المواد/gost.md ko: https://steelequivalents.com/ko/재료/gost.md pt-br: https://steelequivalents.com/pt-br/materiais/gost.md hi: https://steelequivalents.com/hi/सामग्री/gost.md content_hash: sha256:3d29634ef1538b343e4b108210f442291211727f40ca8ea17cf203f69de0b707 generated: 2026-09-27 --- > **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/gost/page/63 > Canonical URL: https://steelequivalents.com/materials/gost/page/63 > 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. GOST · 3,544 grades # GOST steel grades — 3544 designations — Page 63 Every grade designated under GOST, 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 3544 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [ПК40Н2Д2-6.8](/materials/gost/pk40n2d2-6-8 "ПК40Н2Д2-6.8") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [ПК40Н2Д2-7.4](/materials/gost/pk40n2d2-7-4 "ПК40Н2Д2-7.4") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [ПК40Н2Д2М-6.8](/materials/gost/pk40n2d2m-6-8 "ПК40Н2Д2М-6.8") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [ПК40Н2Д2М-7.4](/materials/gost/pk40n2d2m-7-4 "ПК40Н2Д2М-7.4") | [1.6565](/materials/material-no/1.6565 "1.6565") | Quenched and tempered steels | 0.35–0.45 | 15 | | [ПК40Н2М-6.4](/materials/gost/pk40n2m-6-4 "ПК40Н2М-6.4") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40Н2М-6.8](/materials/gost/pk40n2m-6-8 "ПК40Н2М-6.8") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40Н2М-7.2](/materials/gost/pk40n2m-7-2 "ПК40Н2М-7.2") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40Н2М-7.6](/materials/gost/pk40n2m-7-6 "ПК40Н2М-7.6") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40Н3Д2Х-6.4](/materials/gost/pk40n3d2kh-6-4 "ПК40Н3Д2Х-6.4") | — | — | 0.35–0.45 | — | | [ПК40Н3Д2Х-6.8](/materials/gost/pk40n3d2kh-6-8 "ПК40Н3Д2Х-6.8") | — | — | 0.35–0.45 | — | | [ПК40Н4Д2М](/materials/gost/pk40n4d2m "ПК40Н4Д2М") | — | — | 0.31–0.6 | — | | [ПК40Н4Д2М-6.8](/materials/gost/pk40n4d2m-6-8 "ПК40Н4Д2М-6.8") | — | — | 0.31–0.6 | — | | [ПК40Н4Д2М-7.4](/materials/gost/pk40n4d2m-7-4 "ПК40Н4Д2М-7.4") | — | — | 0.31–0.6 | — | | [ПК40НМ-6.8](/materials/gost/pk40nm-6-8 "ПК40НМ-6.8") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [ПК40НМ-7.2](/materials/gost/pk40nm-7-2 "ПК40НМ-7.2") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [ПК40НМ-7.6](/materials/gost/pk40nm-7-6 "ПК40НМ-7.6") | [1.0501](/materials/material-no/1.0501 "1.0501") | Quenched and tempered steels | 0.32–0.39 | 23 | | [ПК40Х13М2](/materials/gost/pk40kh13m2 "ПК40Х13М2") | — | — | 0.3–0.5 | — | | [ПК40Х13М2-7.4](/materials/gost/pk40kh13m2-7-4 "ПК40Х13М2-7.4") | — | — | 0.3–0.5 | — | | [ПК40Х2-6.4](/materials/gost/pk40kh2-6-4 "ПК40Х2-6.4") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40Х2-6.8](/materials/gost/pk40kh2-6-8 "ПК40Х2-6.8") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40Х2-7.4](/materials/gost/pk40kh2-7-4 "ПК40Х2-7.4") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40ХН2Г-6.4](/materials/gost/pk40khn2g-6-4 "ПК40ХН2Г-6.4") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40ХН2Г-6.8](/materials/gost/pk40khn2g-6-8 "ПК40ХН2Г-6.8") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК40ХН2Г-7.4](/materials/gost/pk40khn2g-7-4 "ПК40ХН2Г-7.4") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [ПК70-6.0](/materials/gost/pk70-6-0 "ПК70-6.0") | [EN-JS1102](/materials/material-no/en-js1102 "EN-JS1102") | Others | — | 21 | | [ПК70-6.4](/materials/gost/pk70-6-4 "ПК70-6.4") | [EN-JS1102](/materials/material-no/en-js1102 "EN-JS1102") | Others | — | 21 | | [ПК70-6.8](/materials/gost/pk70-6-8 "ПК70-6.8") | [EN-JS1102](/materials/material-no/en-js1102 "EN-JS1102") | Others | — | 21 | | [ПК70-7.4](/materials/gost/pk70-7-4 "ПК70-7.4") | [EN-JS1102](/materials/material-no/en-js1102 "EN-JS1102") | Others | — | 21 | | [ПК70Д3-6.0](/materials/gost/pk70d3-6-0 "ПК70Д3-6.0") | — | — | 0.66–0.74 | — | | [ПК70Д3-6.4](/materials/gost/pk70d3-6-4 "ПК70Д3-6.4") | — | — | 0.66–0.74 | — | | [ПК70Д3-6.8](/materials/gost/pk70d3-6-8 "ПК70Д3-6.8") | — | — | 0.66–0.74 | — | | [ПК70Д3-7.4](/materials/gost/pk70d3-7-4 "ПК70Д3-7.4") | — | — | 0.66–0.74 | — | | [ПК70Н2Д2](/materials/gost/pk70n2d2 "ПК70Н2Д2") | — | — | 0.61–0.9 | — | | [ПК70Н2Д2-6.4](/materials/gost/pk70n2d2-6-4 "ПК70Н2Д2-6.4") | — | — | 0.61–0.9 | — | | [ПК70Н2Д2-6.8](/materials/gost/pk70n2d2-6-8 "ПК70Н2Д2-6.8") | — | — | 0.61–0.9 | — | | [ПК70Н2Д2-7.4](/materials/gost/pk70n2d2-7-4 "ПК70Н2Д2-7.4") | — | — | 0.61–0.9 | — | | [ПК70Х3-6.4](/materials/gost/pk70kh3-6-4 "ПК70Х3-6.4") | — | — | 0.66–0.74 | — | | [ПК70Х3-6.8](/materials/gost/pk70kh3-6-8 "ПК70Х3-6.8") | — | — | 0.66–0.74 | — | | [ПКГ13-7.4](/materials/gost/pkg13-7-4 "ПКГ13-7.4") | [1.1563](/materials/material-no/1.1563 "1.1563") | Unalloyed tool steels / carbon steels | 1.2–1.35 | 13 | | [ПКХ6-7.4](/materials/gost/pkkh6-7-4 "ПКХ6-7.4") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [ПЛ1](/materials/gost/pl1 "ПЛ1") | — | — | — | — | | [ПТ70](/materials/gost/pt70 "ПТ70") | — | — | 0.67–0.82 | — | | [ПФ1](/materials/gost/pf1 "ПФ1") | — | — | — | — | | [ПХ13М2](/materials/gost/pkh13m2 "ПХ13М2") | — | — | ≤ 0.08 | — | | [ПХ17Н2](/materials/gost/pkh17n2 "ПХ17Н2") | — | — | 0.08–0.17 | — | | [ПХ18Н15](/materials/gost/pkh18n15 "ПХ18Н15") | — | — | ≤ 0.08 | — | | [ПХ20Н80](/materials/gost/pkh20n80 "ПХ20Н80") | — | — | ≤ 0.06 | — | | [ПХ23Н18](/materials/gost/pkh23n18 "ПХ23Н18") | — | — | ≤ 0.08 | — | | [ПХ40Н60](/materials/gost/pkh40n60 "ПХ40Н60") | — | — | ≤ 0.06 | — | | [Р10Ф5К5](/materials/gost/r10f5k5 "Р10Ф5К5") | — | — | 1.45–1.55 | — | **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/gost/page/62 "Previous") Page 63 of 71[Next](/materials/gost/page/64 "Next")