--- title: "BS steel grades — 1547 designations — Page 8" 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/8 language: en robots: index, follow og_type: website type: material-standard language_alternates: en: https://steelequivalents.com/materials/bs/page/8.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: sha256:5ada7273d89b305f2dd20604dfd2637b7ce082e66b2865c28f9a9268f6be169e generated: 2026-09-25 --- > **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/8 > Canonical URL: https://steelequivalents.com/materials/bs/page/8 > 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 8 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 | |---|---|---|---|---| | [301S21](/materials/bs/301s21 "301S21") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [301S81](/materials/bs/301s81 "301S81") | [1.4568](/materials/material-no/1.4568 "1.4568") | Stainless steels | ≤ 0.09 | 12 | | [302 S 17](/materials/bs/302-s-17 "302 S 17") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [302 S 25](/materials/bs/302s25 "302 S 25") | [1.4319](/materials/material-no/1.4319 "1.4319") | Stainless steels | ≤ 0.07 | 11 | | [302C25](/materials/bs/302c25 "302C25") | [1.4312](/materials/material-no/1.4312 "1.4312") | Cast stainless steels | ≤ 0.12 | 15 | | [302S25](/materials/bs/302s25 "302S25") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [302S25](/materials/bs/302s25 "302S25") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [302S25](/materials/bs/302s25 "302S25") | [1.4324](/materials/material-no/1.4324 "1.4324") | Special steels for aviation and aerospace | ≤ 0.12 | 7 | | [302S25](/materials/bs/302s25 "302S25") | [1.4325](/materials/material-no/1.4325 "1.4325") | Stainless steels | 0.03–0.15 | 11 | | [302S26](/materials/bs/302s26 "302S26") | [1.4310](/materials/material-no/1.4310 "1.4310") | Stainless steels | 0.05–0.15 | 18 | | [302S26](/materials/bs/302s26 "302S26") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [303S21](/materials/bs/303s21 "303S21") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [303S21 EN 58M](/materials/bs/303s21-en-58m "303S21 EN 58M") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [303S22](/materials/bs/303s22 "303S22") This grade’s own name | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [303S31](/materials/bs/303s31 "303S31") | [1.4305](/materials/material-no/1.4305 "1.4305") | Stainless steels | ≤ 0.1 | 17 | | [303S41](/materials/bs/303s41 "303S41") | [1.4625](/materials/material-no/1.4625 "1.4625") | Others | ≤ 0.15 | 7 | | [304 S 40](/materials/bs/304-s-40 "304 S 40") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304 S 50](/materials/bs/304-s-50 "304 S 50") | [1.4948](/materials/material-no/1.4948 "1.4948") | High-temperature steels | 0.04–0.08 | 8 | | [304 S 51](/materials/bs/304-s-51 "304 S 51") | [1.4948](/materials/material-no/1.4948 "1.4948") | High-temperature steels | 0.04–0.08 | 8 | | [304 S 61](/materials/bs/304-s-61 "304 S 61") | [1.4311](/materials/material-no/1.4311 "1.4311") | Stainless steels | ≤ 0.03 | 13 | | [304C12](/materials/bs/304c12 "304C12") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [304C12](/materials/bs/304c12 "304C12") | [1.4309](/materials/material-no/1.4309 "1.4309") | Cast stainless steels | ≤ 0.03 | 7 | | [304C15](/materials/bs/304c15 "304C15") | [1.4308](/materials/material-no/1.4308 "1.4308") | Cast stainless steels | ≤ 0.07 | 10 | | [304S11](/materials/bs/304s11 "304S11") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [304S11](/materials/bs/304s11 "304S11") | [1.4307](/materials/material-no/1.4307 "1.4307") | Stainless steels | ≤ 0.03 | 14 | | [304S11](/materials/bs/304s11 "304S11") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S12](/materials/bs/304s12 "304S12") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [304S15](/materials/bs/304s15 "304S15") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S15 EN 58E](/materials/bs/304s15-en-58e "304S15 EN 58E") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S16](/materials/bs/304s16 "304S16") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S17](/materials/bs/304s17 "304S17") | [1.4567](/materials/material-no/1.4567 "1.4567") | Stainless steels | ≤ 0.04 | 8 | | [304S17](/materials/bs/304s17 "304S17") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S18](/materials/bs/304s18 "304S18") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S21](/materials/bs/304s21 "304S21") | [1.4300](/materials/material-no/1.4300 "1.4300") | Stainless steels | ≤ 0.12 | 15 | | [304S25](/materials/bs/304s25 "304S25") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S31](/materials/bs/304s31 "304S31") | [1.4301](/materials/material-no/1.4301 "1.4301") | Stainless steels | ≤ 0.07 | 23 | | [304S62](/materials/bs/304s62 "304S62") | [1.4311](/materials/material-no/1.4311 "1.4311") | Stainless steels | ≤ 0.03 | 13 | | [304S62](/materials/bs/304s62 "304S62") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [305 S 11](/materials/bs/305-s-11 "305 S 11") | [1.4306](/materials/material-no/1.4306 "1.4306") | Stainless steels | ≤ 0.03 | 18 | | [305S17](/materials/bs/305s17 "305S17") | [1.4303](/materials/material-no/1.4303 "1.4303") | Stainless steels | ≤ 0.06 | 14 | | [305S19](/materials/bs/305s19 "305S19") | [1.4303](/materials/material-no/1.4303 "1.4303") | Stainless steels | ≤ 0.06 | 14 | | [305S19](/materials/bs/305s19 "305S19") | [1.4828](/materials/material-no/1.4828 "1.4828") | Heat resistant steels | ≤ 0.2 | 20 | | [3072-76](/materials/bs/3072-76 "3072-76") | [2.4375](/materials/material-no/2.4375 "2.4375") | Nickel and cobalt alloys | ≤ 0.2 | 6 | | [3072-76](/materials/bs/3072-76 "3072-76") | [2.4816](/materials/material-no/2.4816 "2.4816") | High-temperature steels | 0.05–0.1 | 6 | | [3072-76](/materials/bs/3072-76 "3072-76") | [2.4858](/materials/material-no/2.4858 "2.4858") | Nickel and cobalt alloys | ≤ 0.025 | 4 | | [3072-76](/materials/bs/3072-76 "3072-76") | [2.4360](/materials/material-no/2.4360 "2.4360") | Nickel and cobalt alloys | ≤ 0.15 | 7 | | [3076 NA 15 H](/materials/bs/3076-na-15-h "3076 NA 15 H") | [1.4876](/materials/material-no/1.4876 "1.4876") | Heat resistant steels | ≤ 0.12 | 12 | | [3076 NA 17](/materials/bs/3076-na-17 "3076 NA 17") | [1.4864](/materials/material-no/1.4864 "1.4864") | Heat resistant steels | ≤ 0.15 | 14 | | [309C30](/materials/bs/309c30 "309C30") | [1.4826](/materials/material-no/1.4826 "1.4826") | Heat-resistant cast steels | 0.3–0.5 | 13 | | [309C30](/materials/bs/309c30 "309C30") | [1.4837](/materials/material-no/1.4837 "1.4837") | Heat-resistant cast steels | 0.3–0.5 | 7 | **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/7 "Previous") Page 8 of 31[Next](/materials/bs/page/9 "Next")