BS steel grades — 1547 designations — Page 4
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 inother standards |
|---|---|---|---|---|
| 1449-40CS | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| 1449-43/25HR | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| 1449-4HR | 1.0332 | Unalloyed structural steels | ≤ 0.12 | 16 |
| 1449-50/35HR | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| 1449-50/35HR | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| 1449-50/35HS | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| 1449-50/35HS | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| 1449-50CS | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| 1449-50HS | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| 1449-CS | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| 1449-HS | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| 14A | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 14HR | 1.0334 | Unalloyed structural steels | ≤ 0.1 | 11 |
| 14HR | 1.0332 | Unalloyed structural steels | ≤ 0.12 | 16 |
| 150 | EN-JL1020 | Others | — | 22 |
| 1501 | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| 1501 Gr. 161-360 | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| 1501-240 | 1.5415 | Heat-resistant structural steels | 0.12–0.2 | 15 |
| 1501-503-690 | 1.5637 | Low-temperature structural steels | ≤ 0.15 | 11 |
| 1501-509 | 1.5662 | Low-temperature structural steels | ≤ 0.1 | 8 |
| 1501-509 | 1.5662 | Low-temperature structural steels | ≤ 0.1 | 6 |
| 1501-509-510 | 1.5662 | Low-temperature structural steels | ≤ 0.1 | 8 |
| 1501-509-510 | 1.5662 | Low-temperature structural steels | ≤ 0.1 | 6 |
| 1501-620 | 1.7262 | Case hardening steels | 0.13–0.17 | 18 |
| 1501-620 | 1.7335 | Heat-resistant structural steels | 0.08–0.18 | 22 |
| 1501-620Gr27 | 1.7335 | Heat-resistant structural steels | 0.08–0.18 | 22 |
| 1501-621 | 1.7262 | Case hardening steels | 0.13–0.17 | 18 |
| 1501-621 | 1.7335 | Heat-resistant structural steels | 0.08–0.18 | 22 |
| 1501-622 | 1.7380 | Heat-resistant structural steels | 0.08–0.14 | 20 |
| 1501-622 Gr31 | 1.7380 | Heat-resistant structural steels | 0.08–0.14 | 20 |
| 1501Gr.161-400 | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| 1501Gr.164-360 | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| 1503-243B | 1.5415 | Heat-resistant structural steels | 0.12–0.2 | 15 |
| 1503-245-420 | 1.5423 | Heat-resistant structural steels | 0.12–0.2 | 5 |
| 1503-660-440 | 1.7715 | Heat-resistant structural steels | 0.1–0.18 | 8 |
| 150H19 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 150M19 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 150M19 | 1.0841 | Unalloyed structural steels | — | 6 |
| 150M19 | 1.1133 | Quenched and tempered steels | 0.17–0.23 | 20 |
| 150M28 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 150M28 | 1.1173 | Quenched and tempered steels | 0.27–0.34 | 7 |
| 150M28 | 1.1165 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 150M36 | 1.1157 | Quenched and tempered steels | 0.36–0.44 | 9 |
| 150M36 | 1.1127 | Quenched and tempered steels | 0.34–0.42 | 6 |
| 150M36 | 1.1167 | Quenched and tempered steels | 0.32–0.4 | 17 |
| 150M36 | 1.1165 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 151-400 | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| 151-400 | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| 151-430 | 1.0436 | Fine-grain structural steels | 0.15–0.2 | 14 |
| 154-400 | 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.






