--- title: "BS steel grades — 1547 designations — Page 7" 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/7 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/bs/page/7.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: sha256:213af402b28bf962a56c41b82ab7dc26b6d4f94de5a1b0cc1606cb01f77d4441 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/7 > Canonical URL: https://steelequivalents.com/materials/bs/page/7 > 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 7 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. 11 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 | |---|---|---|---|---| | [250](/materials/bs/250 "250") | [EN-JL1040](/materials/material-no/en-jl1040 "EN-JL1040") | Others | — | 22 | | [250A53](/materials/bs/250a53 "250A53") | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [250A53](/materials/bs/250a53 "250A53") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [250A58](/materials/bs/250a58 "250A58") | [1.5092](/materials/material-no/1.5092 "1.5092") | Others | 0.55–0.66 | 8 | | [250A58](/materials/bs/250a58 "250A58") | [1.7108](/materials/material-no/1.7108 "1.7108") | Spring steels | 0.57–0.65 | 11 | | [250A58](/materials/bs/250a58 "250A58") This grade’s own name | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [250A61](/materials/bs/250a61 "250A61") | [1.7102](/materials/material-no/1.7102 "1.7102") | Spring steels | 0.51–0.59 | 14 | | [250A61](/materials/bs/250a61 "250A61") | [1.5092](/materials/material-no/1.5092 "1.5092") | Others | 0.55–0.66 | 8 | | [250A61](/materials/bs/250a61 "250A61") | [1.7108](/materials/material-no/1.7108 "1.7108") | Spring steels | 0.57–0.65 | 11 | | [250A61](/materials/bs/250a61 "250A61") This grade’s own name | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [250A61](/materials/bs/250a61 "250A61") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [251A58](/materials/bs/251a58 "251A58") This grade’s own name | [1.7106](/materials/material-no/1.7106 "1.7106") | Spring steels | 0.52–0.6 | 1 | | [251A58](/materials/bs/251a58 "251A58") | [1.5026](/materials/material-no/1.5026 "1.5026") | Spring steels | 0.52–0.6 | 20 | | [251A58](/materials/bs/251a58 "251A58") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [251A60](/materials/bs/251a60 "251A60") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [251H60](/materials/bs/251h60 "251H60") | [1.0961](/materials/material-no/1.0961 "1.0961") | High-strength multi-phase steels | ≤ 0.18 | 14 | | [251H60](/materials/bs/251h60 "251H60") | [1.2826](/materials/material-no/1.2826 "1.2826") | Tool steels for cold work | 0.58–0.65 | 9 | | [2581](/materials/bs/2581 "2581") | [1.2581](/materials/material-no/1.2581 "1.2581") | Tool steels for hot work | 0.25–0.35 | 18 | | [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 | | [260](/materials/bs/260 "260") | [EN-JL1040](/materials/material-no/en-jl1040 "EN-JL1040") | Others | — | 22 | | [284S16](/materials/bs/284s16 "284S16") | [1.3965](/materials/material-no/1.3965 "1.3965") | Non-magnetic steels | ≤ 0.1 | 9 | | [284S16](/materials/bs/284s16 "284S16") | [1.4373](/materials/material-no/1.4373 "1.4373") | Non-magnetic steels | ≤ 0.15 | 13 | | [286 S 31](/materials/bs/286-s-31 "286 S 31") | [1.4980](/materials/material-no/1.4980 "1.4980") | High-temperature steels | 0.03–0.08 | 8 | | [28Cr4](/materials/din-en/28cr4 "28Cr4") | [1.7030](/materials/material-no/1.7030 "1.7030") | Quenched and tempered steels | 0.24–0.31 | 12 | | [28Mn6](/materials/din-en/28mn6 "28Mn6") | [1.1170](/materials/material-no/1.1170 "1.1170") | Quenched and tempered steels | 0.25–0.32 | 16 | | [2C](/materials/afnor/2c "2C") | [1.0402](/materials/material-no/1.0402 "1.0402") | Quenched and tempered steels | 0.17–0.24 | 24 | | [2CR](/materials/bs/2cr "2CR") | [1.0314](/materials/material-no/1.0314 "1.0314") | Unalloyed structural steels | ≤ 0.03 | 14 | | [2CR](/materials/bs/2cr "2CR") | [1.0333](/materials/material-no/1.0333 "1.0333") | Unalloyed structural steels | ≤ 0.08 | 4 | | [2CR](/materials/bs/2cr "2CR") | [1.0338](/materials/material-no/1.0338 "1.0338") | Unalloyed structural steels | ≤ 0.08 | 18 | | [2HR](/materials/bs/2hr "2HR") | [1.0338](/materials/material-no/1.0338 "1.0338") | Unalloyed structural steels | ≤ 0.08 | 18 | | [2HR](/materials/bs/2hr "2HR") | [1.0322](/materials/material-no/1.0322 "1.0322") | Unalloyed structural steels | ≤ 0.12 | 17 | | [2HR 504](/materials/bs/2hr-504 "2HR 504") | [2.4951](/materials/material-no/2.4951 "2.4951") | High-temperature steels | 0.08–0.15 | 6 | | [2S120](/materials/bs/2s120 "2S120") This grade’s own name | — | — | — | — | | [2S124](/materials/bs/2s124 "2S124") This grade’s own name | — | — | — | — | | [2S129](/materials/bs/2s129 "2S129") | [1.4541](/materials/material-no/1.4541 "1.4541") | Stainless steels | ≤ 0.08 | 25 | | [2S130](/materials/bs/2s130 "2S130") | [1.4544](/materials/material-no/1.4544 "1.4544") | Special steels for aviation and aerospace | ≤ 0.08 | 6 | | [2S135](/materials/bs/2s135 "2S135") | [1.3505](/materials/material-no/1.3505 "1.3505") | Bearing steels | 0.93–1.05 | 22 | | [2S140](/materials/bs/2s140 "2S140") This grade’s own name | — | — | — | — | | [2S142](/materials/bs/2s142 "2S142") This grade’s own name | — | — | — | — | | [2S92](/materials/bs/2s92 "2S92") This grade’s own name | — | — | — | — | | [2S93](/materials/bs/2s93 "2S93") This grade’s own name | — | — | — | — | | [2S97](/materials/bs/2s97 "2S97") This grade’s own name | — | — | — | — | | [2S98D](/materials/bs/2s98d "2S98D") This grade’s own name | — | — | — | — | | [2T66](/materials/bs/2t66 "2T66") | [1.4544](/materials/material-no/1.4544 "1.4544") | Special steels for aviation and aerospace | ≤ 0.08 | 6 | | [3 S.144](/materials/bs/3-s-144 "3 S.144") | [1.4546](/materials/material-no/1.4546 "1.4546") | Special steels for aviation and aerospace | ≤ 0.08 | 5 | | [300](/materials/bs/300 "300") | [EN-JL1050](/materials/material-no/en-jl1050 "EN-JL1050") | Others | — | 22 | | [301 S 21](/materials/bs/301s21 "301 S 21") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [301 S 21](/materials/bs/301s21 "301 S 21") | [1.4325](/materials/material-no/1.4325 "1.4325") | Stainless steels | 0.03–0.15 | 11 | | [301 S 22](/materials/bs/301-s-22 "301 S 22") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | **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/6 "Previous") Page 7 of 31[Next](/materials/bs/page/8 "Next")