--- title: "BS steel grades — 1547 designations — Page 6" description: "Steel grades designated under BS, with chemical composition, mechanical properties and equivalents in other standards. 1547 designations across 549…" canonical: https://steelequivalents.com/materials/bs/page/6 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/bs/page/6.md cs: https://steelequivalents.com/cs/materiály/bs.md de: https://steelequivalents.com/de/werkstoffe/bs.md es: https://steelequivalents.com/es/materiales/bs.md fr: https://steelequivalents.com/fr/matériaux/bs.md hu: https://steelequivalents.com/hu/anyagok/bs.md it: https://steelequivalents.com/it/materiali/bs.md nl: https://steelequivalents.com/nl/materialen/bs.md pl: https://steelequivalents.com/pl/materiały/bs.md pt: https://steelequivalents.com/pt/materiais/bs.md ru: https://steelequivalents.com/ru/материалы/bs.md tr: https://steelequivalents.com/tr/malzemeler/bs.md zh: https://steelequivalents.com/zh/材料/bs.md ja: https://steelequivalents.com/ja/材料/bs.md ar: https://steelequivalents.com/ar/المواد/bs.md ko: https://steelequivalents.com/ko/재료/bs.md pt-br: https://steelequivalents.com/pt-br/materiais/bs.md hi: https://steelequivalents.com/hi/सामग्री/bs.md content_hash: sha256:a16b0a9139756bf3c85e0409fe7ab4362185549c1bf6c221e762f914b9ab0df5 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/bs/page/6 > Canonical URL: https://steelequivalents.com/materials/bs/page/6 > 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. BS · 1,547 grades # BS steel grades — 1547 designations — Page 6 Every grade designated under BS, 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. Unless marked, every name here is an indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 1 of 50 rows differ and carry a “This grade’s own name” mark. ## Also known as 1547 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [2 S.143](/materials/bs/2-s-143 "2 S.143") | [1.4546](/materials/material-no/1.4546 "1.4546") | Special steels for aviation and aerospace | ≤ 0.08 | 5 | | [200](/materials/bs/200 "200") | [EN-JL1030](/materials/material-no/en-jl1030 "EN-JL1030") | Others | — | 22 | | [203-4](/materials/bs/203-4 "203-4") | [2.4630](/materials/material-no/2.4630 "2.4630") | High-temperature steels / aviation variant | 0.08–0.15 | 3 | | [204](/materials/bs/204 "204") | [2.4665](/materials/material-no/2.4665 "2.4665") | High-temperature steels | 0.05–0.15 | 11 | | [2067](/materials/bs/2067 "2067") | [1.2067](/materials/material-no/1.2067 "1.2067") | Tool steels for cold work | 0.95–1.1 | 21 | | [207](/materials/bs/207 "207") | [1.7027](/materials/material-no/1.7027 "1.7027") | Case hardening steels | 0.17–0.23 | 12 | | [2080](/materials/bs/2080 "2080") | [1.2060](/materials/material-no/1.2060 "1.2060") | Tool steels for cold work | 1–1.1 | 15 | | [20Mn5](/materials/din-en/20mn5 "20Mn5") | [1.1133](/materials/material-no/1.1133 "1.1133") | Quenched and tempered steels | 0.17–0.23 | 20 | | [20MnCr5](/materials/din-en/20mncr5 "20MnCr5") | [1.7131](/materials/material-no/1.7131 "1.7131") | Case hardening steels | 0.14–0.19 | 24 | | [20NiCrMo2-2](/materials/din-en/20nicrmo2-2 "20NiCrMo2-2") | [1.6523](/materials/material-no/1.6523 "1.6523") | Case hardening steels | 0.17–0.23 | 18 | | [20NiCrMoS2-2](/materials/din-en/20nicrmos2-2 "20NiCrMoS2-2") | [1.6523](/materials/material-no/1.6523 "1.6523") | Case hardening steels | 0.17–0.23 | 18 | | [210A15](/materials/bs/210a15 "210A15") | [1.0723](/materials/material-no/1.0723 "1.0723") | Free cutting steels | 0.12–0.18 | 3 | | [210M15](/materials/bs/210m15 "210M15") | [1.0721](/materials/material-no/1.0721 "1.0721") | Free cutting steels | 0.07–0.13 | 15 | | [212M36](/materials/bs/212m36 "212M36") | [1.0726](/materials/material-no/1.0726 "1.0726") | Free cutting steels | 0.32–0.39 | 15 | | [212M44](/materials/bs/212m44 "212M44") | [1.0727](/materials/material-no/1.0727 "1.0727") | Free cutting steels | 0.42–0.5 | 8 | | [216M36](/materials/bs/216m36 "216M36") | [1.0762](/materials/material-no/1.0762 "1.0762") | Free cutting steels | 0.4–0.48 | 20 | | [22-4-9](/materials/bs/22-4-9 "22-4-9") | [1.4875](/materials/material-no/1.4875 "1.4875") | Valve steels | 0.5–0.6 | 4 | | [220](/materials/bs/220 "220") | [EN-JL1030](/materials/material-no/en-jl1030 "EN-JL1030") | Others | — | 22 | | [220M07](/materials/bs/220m07 "220M07") | [1.0711](/materials/material-no/1.0711 "1.0711") | Free cutting steels | ≤ 0.12 | 6 | | [223-460](/materials/bs/223-460 "223-460") | [1.0436](/materials/material-no/1.0436 "1.0436") | Fine-grain structural steels | 0.15–0.2 | 14 | | [223-490](/materials/bs/223-490 "223-490") | [1.0445](/materials/material-no/1.0445 "1.0445") | Higher strength steels | — | 12 | | [223Gr.490](/materials/bs/223gr-490 "223Gr.490") | [1.0562](/materials/material-no/1.0562 "1.0562") | Fine-grain structural steels | ≤ 0.18 | 18 | | [224-400](/materials/bs/224-400 "224-400") | [1.0437](/materials/material-no/1.0437 "1.0437") | Others | ≤ 0.2 | 8 | | [224-430](/materials/bs/224-430 "224-430") | [1.0481](/materials/material-no/1.0481 "1.0481") | Heat-resistant structural steels | 0.08–0.2 | 17 | | [224-460](/materials/bs/224-460 "224-460") | [1.0577](/materials/material-no/1.0577 "1.0577") | Unalloyed structural steels | ≤ 0.2 | 11 | | [224-460B](/materials/bs/224-460b "224-460B") | [1.0481](/materials/material-no/1.0481 "1.0481") | Heat-resistant structural steels | 0.08–0.2 | 17 | | [224Gr.430](/materials/bs/224gr-430 "224Gr.430") | [1.0487](/materials/material-no/1.0487 "1.0487") | Fine-grain structural steels | ≤ 0.16 | 3 | | [224Gr.460](/materials/bs/224gr-460 "224Gr.460") | [1.0481](/materials/material-no/1.0481 "1.0481") | Heat-resistant structural steels | 0.08–0.2 | 17 | | [224Gr.490](/materials/bs/224gr-490 "224Gr.490") | [1.0481](/materials/material-no/1.0481 "1.0481") | Heat-resistant structural steels | 0.08–0.2 | 17 | | [224Gr.490](/materials/bs/224gr-490 "224Gr.490") | [1.0473](/materials/material-no/1.0473 "1.0473") | Heat-resistant structural steels | 0.1–0.22 | 10 | | [224Gr.490](/materials/bs/224gr-490 "224Gr.490") | [1.0566](/materials/material-no/1.0566 "1.0566") | Fine-grain structural steels | ≤ 0.18 | 11 | | [224Gr.490](/materials/bs/224gr-490 "224Gr.490") | [1.0565](/materials/material-no/1.0565 "1.0565") | Fine-grain structural steels | ≤ 0.18 | 7 | | [225M36](/materials/bs/225m36 "225M36") | [1.0762](/materials/material-no/1.0762 "1.0762") | Free cutting steels | 0.4–0.48 | 20 | | [226M44](/materials/bs/226m44 "226M44") | [1.0762](/materials/material-no/1.0762 "1.0762") | Free cutting steels | 0.4–0.48 | 20 | | [22H17](/materials/bs/22h17 "22H17") This grade’s own name | [1.6587](/materials/material-no/1.6587 "1.6587") | Case hardening steels | 0.15–0.21 | 15 | | [22HS](/materials/bs/22hs "22HS") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [230M07](/materials/bs/230m07 "230M07") | [1.0715](/materials/material-no/1.0715 "1.0715") | Free cutting steels | ≤ 0.14 | 14 | | [230M07](/materials/bs/230m07 "230M07") | [1.0736](/materials/material-no/1.0736 "1.0736") | Free cutting steels | ≤ 0.14 | 11 | | [230M07Pb](/materials/bs/230m07pb "230M07Pb") | [1.0737](/materials/material-no/1.0737 "1.0737") | Free cutting steels | ≤ 0.14 | 8 | | [2343](/materials/bs/2343 "2343") | [1.2343](/materials/material-no/1.2343 "1.2343") | Tool steels for hot work | 0.33–0.41 | 20 | | [2344](/materials/bs/2344 "2344") | [1.2344](/materials/material-no/1.2344 "1.2344") | Tool steels for hot work | 0.35–0.42 | 20 | | [235JRG1](/materials/bs/235jrg1 "235JRG1") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [235JRG1](/materials/bs/235jrg1 "235JRG1") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [2365](/materials/bs/2365 "2365") | [1.2365](/materials/material-no/1.2365 "1.2365") | Tool steels for hot work | 0.28–0.35 | 18 | | [240](/materials/bs/240 "240") | [1.5415](/materials/material-no/1.5415 "1.5415") | Heat-resistant structural steels | 0.12–0.2 | 15 | | [240M07](/materials/bs/240m07 "240M07") | [1.0736](/materials/material-no/1.0736 "1.0736") | Free cutting steels | ≤ 0.14 | 11 | | [240M07EN](/materials/bs/240m07en "240M07EN") | [1.0736](/materials/material-no/1.0736 "1.0736") | Free cutting steels | ≤ 0.14 | 11 | | [240M07EN 1B](/materials/bs/240m07en-1b "240M07EN 1B") | [1.0736](/materials/material-no/1.0736 "1.0736") | Free cutting steels | ≤ 0.14 | 11 | | [243](/materials/bs/243 "243") | [1.5415](/materials/material-no/1.5415 "1.5415") | Heat-resistant structural steels | 0.12–0.2 | 15 | | [244Gr.400](/materials/bs/244gr-400 "244Gr.400") | [1.0425](/materials/material-no/1.0425 "1.0425") | Heat-resistant 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/bs/page/5 "Previous") Page 6 of 31[Next](/materials/bs/page/7 "Next")