--- title: "SFS steel grades — 60 designations" description: "Steel grades designated under SFS, with chemical composition, mechanical properties and equivalents in other standards. 60 designations across 47…" canonical: https://steelequivalents.com/materials/sfs language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/sfs.md cs: https://steelequivalents.com/cs/materiály/sfs.md de: https://steelequivalents.com/de/werkstoffe/sfs.md es: https://steelequivalents.com/es/materiales/sfs.md fr: https://steelequivalents.com/fr/matériaux/sfs.md hu: https://steelequivalents.com/hu/anyagok/sfs.md it: https://steelequivalents.com/it/materiali/sfs.md nl: https://steelequivalents.com/nl/materialen/sfs.md pl: https://steelequivalents.com/pl/materiały/sfs.md pt: https://steelequivalents.com/pt/materiais/sfs.md ru: https://steelequivalents.com/ru/материалы/sfs.md tr: https://steelequivalents.com/tr/malzemeler/sfs.md zh: https://steelequivalents.com/zh/材料/sfs.md ja: https://steelequivalents.com/ja/材料/sfs.md ar: https://steelequivalents.com/ar/المواد/sfs.md ko: https://steelequivalents.com/ko/재료/sfs.md pt-br: https://steelequivalents.com/pt-br/materiais/sfs.md hi: https://steelequivalents.com/hi/सामग्री/sfs.md content_hash: sha256:3eb352b927cd39780fc5284d49bd953cb377fadc0596584c26e2a628bfaa0d6e 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/sfs > Canonical URL: https://steelequivalents.com/materials/sfs > 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. SFS · 60 grades # SFS steel grades — 60 designations Every grade designated under SFS, 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 60 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [20MnCr5](/materials/din-en/20mncr5 "20MnCr5") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [21NiCrMo2](/materials/din-en/21nicrmo2 "21NiCrMo2") | [1.6523](/materials/material-no/1.6523 "1.6523") | Case hardening steels | 0.17–0.23 | 18 | | [25CrMo4](/materials/din-en/25crmo4 "25CrMo4") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [25CrMo4](/materials/din-en/25crmo4 "25CrMo4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [42CrMo4](/materials/din-en/42crmo4 "42CrMo4") | [1.7225](/materials/material-no/1.7225 "1.7225") | Quenched and tempered steels | 0.38–0.45 | 25 | | [505](/materials/sfs/505 "505") | [1.1141](/materials/material-no/1.1141 "1.1141") | Case hardening steels | 0.12–0.18 | 20 | | [506](/materials/sfs/506 "506") | [1.6523](/materials/material-no/1.6523 "1.6523") | Case hardening steels | 0.17–0.23 | 18 | | [510](/materials/bs/510 "510") | [1.7147](/materials/material-no/1.7147 "1.7147") | Case hardening steels | 0.17–0.22 | 15 | | [511](/materials/sfs/511 "511") | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | | [720](/materials/sfs/720 "720") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [725](/materials/sfs/725 "725") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [731](/materials/sfs/731 "731") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [750](/materials/sfs/750 "750") | [1.4404](/materials/material-no/1.4404 "1.4404") | Stainless steels | ≤ 0.03 | 25 | | [752](/materials/sfs/752 "752") | [1.4435](/materials/material-no/1.4435 "1.4435") | Stainless steels | ≤ 0.03 | 20 | | [757](/materials/sfs/757 "757") | [1.4436](/materials/material-no/1.4436 "1.4436") | Stainless steels | ≤ 0.05 | 19 | | [761](/materials/sfs/761 "761") | [1.4571](/materials/material-no/1.4571 "1.4571") | Stainless steels | ≤ 0.08 | 18 | | [770](/materials/sfs/770 "770") | [1.4438](/materials/material-no/1.4438 "1.4438") | Stainless steels | ≤ 0.03 | 13 | | [C35](/materials/din-en/c35 "C35") | [1.1181](/materials/material-no/1.1181 "1.1181") | Quenched and tempered steels | 0.32–0.39 | 20 | | [C45](/materials/din-en/c45 "C45") | [1.1191](/materials/material-no/1.1191 "1.1191") | Quenched and tempered steels | 0.42–0.5 | 21 | | [C45](/materials/din-en/c45 "C45") | [1.1191](/materials/material-no/1.1191 "1.1191") | Others | 0.42–0.5 | 18 | | [Fe33](/materials/sfs/fe33 "Fe33") | [1.0035](/materials/material-no/1.0035 "1.0035") | Unalloyed structural steels | — | 22 | | [Fe355DP](/materials/sfs/fe355dp "Fe355DP") | [1.0562](/materials/material-no/1.0562 "1.0562") | Fine-grain structural steels | ≤ 0.18 | 18 | | [Fe355EP](/materials/sfs/fe355ep "Fe355EP") | [1.0566](/materials/material-no/1.0566 "1.0566") | Fine-grain structural steels | ≤ 0.18 | 11 | | [Fe37B](/materials/sfs/fe37b "Fe37B") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [Fe37BP](/materials/sfs/fe37bp "Fe37BP") | [1.0345](/materials/material-no/1.0345 "1.0345") | Heat-resistant structural steels | ≤ 0.16 | 18 | | [Fe44B](/materials/sfs/fe44b "Fe44B") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [Fe44D](/materials/sfs/fe44d "Fe44D") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [Fe50](/materials/sfs/fe50 "Fe50") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [Fe50](/materials/sfs/fe50 "Fe50") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [Fe52BP](/materials/sfs/fe52bp "Fe52BP") | [1.0473](/materials/material-no/1.0473 "1.0473") | Heat-resistant structural steels | 0.1–0.22 | 10 | | [Fe52C](/materials/sfs/fe52c "Fe52C") | [1.0553](/materials/material-no/1.0553 "1.0553") | Unalloyed structural steels | ≤ 0.2 | 20 | | [Fe52DP](/materials/sfs/fe52dp "Fe52DP") | [1.0473](/materials/material-no/1.0473 "1.0473") | Heat-resistant structural steels | 0.1–0.22 | 10 | | [FORM300H](/materials/sfs/form300h "FORM300H") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [G-25CrMo4](/materials/sfs/g-25crmo4 "G-25CrMo4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [G-25CrMo4](/materials/sfs/g-25crmo4 "G-25CrMo4") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [G-26-52](/materials/sfs/g-26-52 "G-26-52") | [1.0552](/materials/material-no/1.0552 "1.0552") | Others | ≤ 0.25 | 13 | | [G-30-57](/materials/sfs/g-30-57 "G-30-57") | [1.0552](/materials/material-no/1.0552 "1.0552") | Others | ≤ 0.25 | 13 | | [G-34CrMo4](/materials/din-en/g34crmo4 "G-34CrMo4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [G-X120Mn13](/materials/din-en/g-x120mn13 "G-X120Mn13") | [1.3401](/materials/material-no/1.3401 "1.3401") | Quenched and tempered steels | 1.1–1.3 | 19 | | [G-X12Cr13](/materials/din-en/gx12cr13 "G-X12Cr13") | [1.4006](/materials/material-no/1.4006 "1.4006") | Stainless steels | 0.08–0.15 | 26 | | [GRP400](/materials/sfs/grp400 "GRP400") | [EN-JS1030](/materials/material-no/en-js1030 "EN-JS1030") | Others | — | 17 | | [GRP400](/materials/sfs/grp400 "GRP400") | [EN-JS1072](/materials/material-no/en-js1072 "EN-JS1072") | Others | — | 17 | | [GRP400](/materials/sfs/grp400 "GRP400") | [EN-JS1073](/materials/material-no/en-js1073 "EN-JS1073") | Others | — | 17 | | [GRP500](/materials/sfs/grp500 "GRP500") | [EN-JS1082](/materials/material-no/en-js1082 "EN-JS1082") | Others | — | 20 | | [GRP500](/materials/sfs/grp500 "GRP500") | [EN-JS1083](/materials/material-no/en-js1083 "EN-JS1083") | Others | — | 20 | | [GRP600](/materials/sfs/grp600 "GRP600") | [EN-JS1060](/materials/material-no/en-js1060 "EN-JS1060") | Others | — | 20 | | [GRP600](/materials/sfs/grp600 "GRP600") | [EN-JS1092](/materials/material-no/en-js1092 "EN-JS1092") | Others | — | 20 | | [GRP600](/materials/sfs/grp600 "GRP600") | [EN-JS1093](/materials/material-no/en-js1093 "EN-JS1093") | Others | — | 20 | | [GRP700](/materials/sfs/grp700 "GRP700") | [EN-JS1102](/materials/material-no/en-js1102 "EN-JS1102") | Others | — | 21 | | [GRP700](/materials/sfs/grp700 "GRP700") | [EN-JS1103](/materials/material-no/en-js1103 "EN-JS1103") | Others | — | 21 | **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 2[Next](/materials/sfs/page/2 "Next")