--- title: "BS steel grades — 1547 designations — Page 26" 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/26 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/bs/page/26.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: sha256:73458978151b49005e54fd49e3c15aabcb75953d4e0bcaba8ea8f29c87d638d5 generated: 2026-09-26 --- > **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/26 > Canonical URL: https://steelequivalents.com/materials/bs/page/26 > 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 26 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. 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 1547 designations | Grade | Material no. | Category | C% by weight | Also in other standards | |---|---|---|---|---| | [Fe360D1FF](/materials/bs/fe360d1ff "Fe360D1FF") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [Fe430BFN](/materials/uni/fe430bfn "Fe430BFN") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [Fe430D1FF](/materials/bs/fe430d1ff "Fe430D1FF") | [1.0144](/materials/material-no/1.0144 "1.0144") | Unalloyed structural steels | ≤ 0.18 | 22 | | [Fe430D1FF](/materials/bs/fe430d1ff "Fe430D1FF") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [Fe490-2FN](/materials/bs/fe490-2fn "Fe490-2FN") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [Fe490-2FN](/materials/bs/fe490-2fn "Fe490-2FN") | [1.0050](/materials/material-no/1.0050 "1.0050") | Unalloyed structural steels | — | 23 | | [Fe510](/materials/bs/fe510 "Fe510") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [Fe510](/materials/bs/fe510 "Fe510") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [Fe510D1FF](/materials/bs/fe510d1ff "Fe510D1FF") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [Fe510D1FF](/materials/bs/fe510d1ff "Fe510D1FF") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 20 | | [Fe590-2FN](/materials/bs/fe590-2fn "Fe590-2FN") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [Fe590-2FN](/materials/bs/fe590-2fn "Fe590-2FN") | [1.0060](/materials/material-no/1.0060 "1.0060") | Unalloyed structural steels | — | 21 | | [FeP01](/materials/afnor/fep01 "FeP01") | [1.0330](/materials/material-no/1.0330 "1.0330") | Unalloyed structural steels | ≤ 0.12 | 17 | | [FeP01](/materials/afnor/fep01 "FeP01") | [1.0338](/materials/material-no/1.0338 "1.0338") | Unalloyed structural steels | ≤ 0.08 | 18 | | [G17Mn5](/materials/din-en/g17mn5 "G17Mn5") | [1.1131](/materials/material-no/1.1131 "1.1131") | Others | 0.15–0.2 | 5 | | [Gr 40A](/materials/bs/gr-40a "Gr 40A") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [Gr 40A](/materials/bs/gr-40a "Gr 40A") | [1.0037](/materials/material-no/1.0037 "1.0037") | Unalloyed structural steels | ≤ 0.17 | 7 | | [Gr 40A](/materials/bs/gr-40a "Gr 40A") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [Gr 40A](/materials/bs/gr-40a "Gr 40A") | [1.0167](/materials/material-no/1.0167 "1.0167") | Unalloyed structural steels | ≤ 0.17 | 4 | | [Gr 40C](/materials/bs/gr-40c "Gr 40C") | [1.0114](/materials/material-no/1.0114 "1.0114") | Unalloyed structural steels | ≤ 0.17 | 21 | | [Gr 40D](/materials/bs/gr-40d "Gr 40D") | [1.0116](/materials/material-no/1.0116 "1.0116") | Unalloyed structural steels | ≤ 0.17 | 12 | | [Gr 43A](/materials/bs/gr-43a "Gr 43A") | — | — | — | 1 | | [Gr 43B](/materials/bs/gr-43b "Gr 43B") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [Gr 43C](/materials/bs/gr-43c "Gr 43C") | [1.0143](/materials/material-no/1.0143 "1.0143") | Unalloyed structural steels | ≤ 0.18 | 16 | | [Gr 50B](/materials/bs/gr-50b "Gr 50B") | [1.0045](/materials/material-no/1.0045 "1.0045") | Unalloyed structural steels | ≤ 0.24 | 17 | | [Gr 50C](/materials/bs/gr-50c "Gr 50C") | [1.0507](/materials/material-no/1.0507 "1.0507") | Others | ≤ 0.2 | 8 | | [Gr 50D](/materials/bs/gr-50d "Gr 50D") | [1.0570](/materials/material-no/1.0570 "1.0570") | Unalloyed structural steels | ≤ 0.2 | 22 | | [Gr.150](/materials/bs/gr-150 "Gr.150") | [EN-JL1020](/materials/material-no/en-jl1020 "EN-JL1020") | Others | — | 22 | | [Gr.A](/materials/aisi-sae/gr-a "Gr.A") | [1.1120](/materials/material-no/1.1120 "1.1120") | Others | 0.17–0.23 | 13 | | [Gr31](/materials/bs/gr31 "Gr31") | [1.7380](/materials/material-no/1.7380 "1.7380") | Heat-resistant structural steels | 0.08–0.14 | 20 | | [Grade 150](/materials/bs/grade-150 "Grade 150") | [EN-JL1020](/materials/material-no/en-jl1020 "EN-JL1020") | Others | — | 22 | | [Grade 220](/materials/bs/grade-220 "Grade 220") | [EN-JL1030](/materials/material-no/en-jl1030 "EN-JL1030") | Others | — | 22 | | [Grade 260](/materials/bs/grade-260 "Grade 260") | [EN-JL1040](/materials/material-no/en-jl1040 "EN-JL1040") | Others | — | 22 | | [Grade 300](/materials/bs/grade-300 "Grade 300") | [EN-JL1050](/materials/material-no/en-jl1050 "EN-JL1050") | Others | — | 22 | | [Grade 350](/materials/bs/grade-350 "Grade 350") | [EN-JL1060](/materials/material-no/en-jl1060 "EN-JL1060") | Others | — | 21 | | [Grade 400](/materials/bs/grade-400 "Grade 400") | — | — | — | 4 | | [Grade S6](/materials/bs/grade-s6 "Grade S6") | [EN-JS3011](/materials/material-no/en-js3011 "EN-JS3011") | Others | ≤ 3 | 5 | | [HC 204](/materials/bs/hc-204 "HC 204") | [2.4674](/materials/material-no/2.4674 "2.4674") | Nickel and cobalt alloys | 0.15–0.2 | 2 | | [HCM3](/materials/bs/hcm3 "HCM3") | [1.8523](/materials/material-no/1.8523 "1.8523") | Nitriding steels | 0.35–0.45 | 3 | | [HCM5](/materials/bs/hcm5 "HCM5") | [1.8515](/materials/material-no/1.8515 "1.8515") | Nitriding steels | 0.28–0.35 | 8 | | [HCM5](/materials/bs/hcm5 "HCM5") | [1.7361](/materials/material-no/1.7361 "1.7361") | Quenched and tempered steels | 0.28–0.35 | 7 | | [HFS3](/materials/bs/hfs3 "HFS3") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [HFS4](/materials/bs/hfs4 "HFS4") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [HFS4](/materials/bs/hfs4 "HFS4") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 20 | | [HFS4](/materials/bs/hfs4 "HFS4") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 19 | | [HFS4](/materials/bs/hfs4 "HFS4") | [1.0044](/materials/material-no/1.0044 "1.0044") | Unalloyed structural steels | ≤ 0.21 | 26 | | [HFS4](/materials/bs/hfs4 "HFS4") | [1.0028](/materials/material-no/1.0028 "1.0028") | Unalloyed structural steels | ≤ 0.15 | 18 | | [HFW3](/materials/bs/hfw3 "HFW3") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [HFW4](/materials/bs/hfw4 "HFW4") | [1.0038](/materials/material-no/1.0038 "1.0038") | Unalloyed structural steels | ≤ 0.17 | 26 | | [HFW4](/materials/bs/hfw4 "HFW4") | [1.0036](/materials/material-no/1.0036 "1.0036") | Unalloyed structural steels | ≤ 0.17 | 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/25 "Previous") Page 26 of 31[Next](/materials/bs/page/27 "Next")