BS steel grades — 1547 designations — Page 13
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 |
|---|---|---|---|---|
| 420-12 | EN-JS1073 | Others | — | 17 |
| 420C24 | 1.4027 | Cast stainless steels | 0.16–0.23 | 14 |
| 420C29 | 1.4027 | Cast stainless steels | 0.16–0.23 | 14 |
| 420S29 | 1.4021 | Stainless steels | 0.16–0.25 | 18 |
| 420S37 | 1.4028 | Stainless steels | 0.26–0.35 | 18 |
| 420S37 | 1.4021 | Stainless steels | 0.16–0.25 | 18 |
| 420S37 | 1.4006 | Stainless steels | 0.08–0.15 | 26 |
| 420S37 | 1.2083 | Tool steels for cold work | 0.36–0.42 | 16 |
| 420S45 | 1.4031 | Stainless steels | 0.36–0.42 | 18 |
| 420S45 | 1.4034 | Stainless steels | 0.43–0.5 | 18 |
| 420S45 | 1.4029 | Stainless steels | 0.25–0.32 | 10 |
| 420S45 EN 56D | 1.4034 | Stainless steels | 0.43–0.5 | 18 |
| 425 C 11 | 1.4317 | Cast stainless steels | ≤ 0.06 | 4 |
| 425 C 12 | 1.4317 | Cast stainless steels | ≤ 0.06 | 4 |
| 425C11 | 1.4313 | Stainless steels | ≤ 0.05 | 8 |
| 42CrMO4 | 1.7223 | Steels for surface hardening | 0.38–0.44 | 13 |
| 42CrMO4 | 1.7225 | Quenched and tempered steels | 0.38–0.45 | 25 |
| 43/25HR | 1.0040 | Unalloyed structural steels | ≤ 0.25 | 8 |
| 43/25HS | 1.0040 | Unalloyed structural steels | ≤ 0.25 | 8 |
| 43/35 | 1.0977 | Fine-grain steels for cold forming | ≤ 0.18 | 1 |
| 43/35HS | 1.0050 | Unalloyed structural steels | — | 23 |
| 43/35HS | 1.0050 | Unalloyed structural steels | — | 23 |
| 430 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| 430A | 1.0443 | Others | ≤ 0.11 | 13 |
| 430LT | 1.0481 | Heat-resistant structural steels | 0.08–0.2 | 17 |
| 430LT | 1.0436 | Fine-grain structural steels | 0.15–0.2 | 14 |
| 430S1 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| 430S15 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| 430S15 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| 430S17 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| 430S18 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| 431 S 29 En57 | 1.4057 | Stainless steels | 0.12–0.22 | 17 |
| 431S29 | 1.4057 | Stainless steels | 0.12–0.22 | 17 |
| 431S29 | 1.4044 | Special steels for aviation and aerospace | 0.12–0.2 | 8 |
| 434S17 | 1.4113 | Stainless steels | ≤ 0.08 | 10 |
| 4360 40 C | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| 4360 43 C | 1.0144 | Unalloyed structural steels | ≤ 0.18 | 22 |
| 4360 50 B | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| 4360 50 B | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| 4360 55 E | 1.8900 | Fine-grain structural steels | ≤ 0.2 | 4 |
| 4360-40B | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| 4360-40B | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| 4360-40B | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| 4360-40C | 1.0116 | Unalloyed structural steels | ≤ 0.17 | 12 |
| 4360-40D | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| 4360-40D | 1.0028 | Unalloyed structural steels | ≤ 0.15 | 18 |
| 4360-43B | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| 4360-43C | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| 4360-50B | 1.0050 | Unalloyed structural steels | — | 23 |
| 4360-50B | 1.0050 | Unalloyed structural steels | — | 23 |
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.