--- title: "MSZ steel grades — 255 designations" description: "Steel grades designated under MSZ, with chemical composition, mechanical properties and equivalents in other standards. 255 designations across 156…" canonical: https://steelequivalents.com/materials/msz language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/msz.md cs: https://steelequivalents.com/cs/materiály/msz.md de: https://steelequivalents.com/de/werkstoffe/msz.md es: https://steelequivalents.com/es/materiales/msz.md fr: https://steelequivalents.com/fr/matériaux/msz.md hu: https://steelequivalents.com/hu/anyagok/msz.md it: https://steelequivalents.com/it/materiali/msz.md nl: https://steelequivalents.com/nl/materialen/msz.md pl: https://steelequivalents.com/pl/materiały/msz.md pt: https://steelequivalents.com/pt/materiais/msz.md ru: https://steelequivalents.com/ru/материалы/msz.md tr: https://steelequivalents.com/tr/malzemeler/msz.md zh: https://steelequivalents.com/zh/材料/msz.md ja: https://steelequivalents.com/ja/材料/msz.md ar: https://steelequivalents.com/ar/المواد/msz.md ko: https://steelequivalents.com/ko/재료/msz.md pt-br: https://steelequivalents.com/pt-br/materiais/msz.md hi: https://steelequivalents.com/hi/सामग्री/msz.md content_hash: sha256:97628f8d6c0945303e84ea92e71b7b6ead0d45ed5660bee1c76bd4b228c8eb8f 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/msz > Canonical URL: https://steelequivalents.com/materials/msz > 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. MSZ · 255 grades # MSZ steel grades — 255 designations Every grade designated under MSZ, 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 255 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [~BCMo 1](/materials/msz/bcmo-1 "~BCMo 1") | [1.7243](/materials/material-no/1.7243 "1.7243") | Case hardening steels | 0.15–0.21 | 12 | | [~BNC 2](/materials/msz/bnc2 "~BNC 2") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [~BNC 2](/materials/msz/bnc2 "~BNC 2") | [1.5752](/materials/material-no/1.5752 "1.5752") | Case hardening steels | 0.14–0.2 | 15 | | [~BNC 5](/materials/msz/bnc-5 "~BNC 5") | [1.5918](/materials/material-no/1.5918 "1.5918") | Case hardening steels | 0.14–0.2 | 3 | | [~BNCMo 1](/materials/msz/bncmo-1 "~BNCMo 1") | [1.6566](/materials/material-no/1.6566 "1.6566") | Case hardening steels | 0.14–0.2 | 7 | | [~BNCMo 2](/materials/msz/bncmo-2 "~BNCMo 2") | [1.6657](/materials/material-no/1.6657 "1.6657") | Special steels for aviation and aerospace | 0.11–0.17 | 15 | | [12CrMo20-5](/materials/msz/12crmo20-5 "12CrMo20-5") | [1.7362](/materials/material-no/1.7362 "1.7362") | Hydrogen resistant steels | 0.1–0.15 | 13 | | [13CrMo4-5](/materials/din-en/13crmo4-5 "13CrMo4-5") | [1.7262](/materials/material-no/1.7262 "1.7262") | Case hardening steels | 0.13–0.17 | 18 | | [13CrMo4-5](/materials/din-en/13crmo4-5 "13CrMo4-5") | [1.7335](/materials/material-no/1.7335 "1.7335") | Heat-resistant structural steels | 0.08–0.18 | 22 | | [25CrMo4](/materials/din-en/25crmo4 "25CrMo4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [25CrMo4](/materials/din-en/25crmo4 "25CrMo4") | [1.7218](/materials/material-no/1.7218 "1.7218") | Quenched and tempered steels | 0.22–0.29 | 25 | | [28Mn6](/materials/din-en/28mn6 "28Mn6") | [1.1170](/materials/material-no/1.1170 "1.1170") | Quenched and tempered steels | 0.25–0.32 | 16 | | [2Cr10Mo45.47](/materials/msz/2cr10mo45-47 "2Cr10Mo45.47") | [1.7380](/materials/material-no/1.7380 "1.7380") | Heat-resistant structural steels | 0.08–0.14 | 20 | | [34Cr4](/materials/din-en/34cr4 "34Cr4") | [1.7033](/materials/material-no/1.7033 "1.7033") | Quenched and tempered steels | 0.3–0.37 | 18 | | [34CrMo4](/materials/din-en/34crmo4 "34CrMo4") | [1.7220](/materials/material-no/1.7220 "1.7220") | Quenched and tempered steels | 0.3–0.37 | 24 | | [34CrNiMo6](/materials/din-en/34crnimo6 "34CrNiMo6") | [1.6582](/materials/material-no/1.6582 "1.6582") | Quenched and tempered steels | 0.3–0.38 | 25 | | [36CrNiMo4](/materials/din-en/36crnimo4 "36CrNiMo4") | [1.6511](/materials/material-no/1.6511 "1.6511") | Quenched and tempered steels | 0.32–0.4 | 18 | | [37 B](/materials/msz/37-b "37 B") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [37 C](/materials/msz/37-c "37 C") | [1.0114](/materials/material-no/1.0114 "1.0114") | Unalloyed structural steels | ≤ 0.17 | 21 | | [37Cr4](/materials/din-en/37cr4 "37Cr4") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [40CrNiSi25-12](/materials/msz/40crnisi25-12 "40CrNiSi25-12") | [1.4826](/materials/material-no/1.4826 "1.4826") | Heat-resistant cast steels | 0.3–0.5 | 13 | | [41Cr4](/materials/din-en/41cr4 "41Cr4") | [1.7034](/materials/material-no/1.7034 "1.7034") | Quenched and tempered steels | 0.34–0.41 | 23 | | [45 B](/materials/gb/45b "45 B") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [45 C](/materials/msz/45-c "45 C") | [1.0143](/materials/material-no/1.0143 "1.0143") | Unalloyed structural steels | ≤ 0.18 | 16 | | [45D](/materials/msz/45d "45D") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [45D](/materials/msz/45d "45D") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [51CrV4](/materials/din-en/51crv4 "51CrV4") | [1.8159](/materials/material-no/1.8159 "1.8159") | Quenched and tempered steels | 0.47–0.55 | 27 | | [52 C](/materials/msz/52-c "52 C") | [1.0553](/materials/material-no/1.0553 "1.0553") | Unalloyed structural steels | ≤ 0.2 | 20 | | [52D](/materials/msz/52d "52D") | [1.0562](/materials/material-no/1.0562 "1.0562") | Fine-grain structural steels | ≤ 0.18 | 18 | | [55Si7](/materials/din-en/55si7 "55Si7") | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [58C](/materials/msz/58c "58C") | [1.8902](/materials/material-no/1.8902 "1.8902") | Fine-grain structural steels | ≤ 0.2 | 19 | | [61Si7](/materials/msz/61si7 "61Si7") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [A 38 B](/materials/msz/a-38-b "A 38 B") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [A 44](/materials/msz/a-44 "A 44") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [A 50](/materials/afnor/a50 "A 50") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [A 50](/materials/afnor/a50 "A 50") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [A 60](/materials/msz/a-60 "A 60") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [A 60](/materials/msz/a-60 "A 60") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [A 70](/materials/afnor/a70 "A 70") | [1.0070](/materials/material-no/1.0070 "1.0070") | Unalloyed structural steels | — | 16 | | [A 70](/materials/afnor/a70 "A 70") | [1.0070](/materials/material-no/1.0070 "1.0070") | Unalloyed structural steels | — | 16 | | [A0](/materials/din-en/a0 "A0") | [1.0035](/materials/material-no/1.0035 "1.0035") | Unalloyed structural steels | — | 22 | | [A1](/materials/gost/a1 "A1") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [A1](/materials/gost/a1 "A1") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [A3](/materials/din-en/a3 "A3") | [1.0503](/materials/material-no/1.0503 "1.0503") | Quenched and tempered steels | 0.42–0.5 | 24 | | [A45.47](/materials/msz/a45-47 "A45.47") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [A45.47](/materials/msz/a45-47 "A45.47") | [1.0436](/materials/material-no/1.0436 "1.0436") | Fine-grain structural steels | 0.15–0.2 | 14 | | [AH80](/materials/msz/ah80 "AH80") | [1.5637](/materials/material-no/1.5637 "1.5637") | Low-temperature structural steels | ≤ 0.15 | 11 | | [AH80](/materials/msz/ah80 "AH80") | [1.5639](/materials/material-no/1.5639 "1.5639") | Low-temperature structural steels | 0.12–0.19 | 9 | | [ANS2](/materials/msz/ans2 "ANS2") | [1.0762](/materials/material-no/1.0762 "1.0762") | Free cutting steels | 0.4–0.48 | 20 | | [Ao20Mn5](/materials/msz/ao20mn5 "Ao20Mn5") | [1.1133](/materials/material-no/1.1133 "1.1133") | Quenched and tempered steels | 0.17–0.23 | 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. Page 1 of 6[Next](/materials/msz/page/2 "Next")