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 inother standards |
|---|---|---|---|---|
| 250 | EN-JL1040 | Others | — | 22 |
| 250A53 | 1.5026 | Spring steels | 0.52–0.6 | 20 |
| 250A53 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 250A58 | 1.5092 | Others | 0.55–0.66 | 8 |
| 250A58 | 1.7108 | Spring steels | 0.57–0.65 | 11 |
| 250A58 This grade’s own name | 1.5026 | Spring steels | 0.52–0.6 | 20 |
| 250A61 | 1.7102 | Spring steels | 0.51–0.59 | 14 |
| 250A61 | 1.5092 | Others | 0.55–0.66 | 8 |
| 250A61 | 1.7108 | Spring steels | 0.57–0.65 | 11 |
| 250A61 This grade’s own name | 1.5026 | Spring steels | 0.52–0.6 | 20 |
| 250A61 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 251A58 This grade’s own name | 1.7106 | Spring steels | 0.52–0.6 | 1 |
| 251A58 | 1.5026 | Spring steels | 0.52–0.6 | 20 |
| 251A58 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 251A60 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 251H60 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 251H60 | 1.2826 | Tool steels for cold work | 0.58–0.65 | 9 |
| 2581 | 1.2581 | Tool steels for hot work | 0.25–0.35 | 18 |
| 25CrMo4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 25CrMo4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 260 | EN-JL1040 | Others | — | 22 |
| 284S16 | 1.3965 | Non-magnetic steels | ≤ 0.1 | 9 |
| 284S16 | 1.4373 | Non-magnetic steels | ≤ 0.15 | 13 |
| 286 S 31 | 1.4980 | High-temperature steels | 0.03–0.08 | 8 |
| 28Cr4 | 1.7030 | Quenched and tempered steels | 0.24–0.31 | 12 |
| 28Mn6 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 2C | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| 2CR | 1.0314 | Unalloyed structural steels | ≤ 0.03 | 14 |
| 2CR | 1.0333 | Unalloyed structural steels | ≤ 0.08 | 4 |
| 2CR | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| 2HR | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| 2HR | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 2HR 504 | 2.4951 | High-temperature steels | 0.08–0.15 | 6 |
| 2S120 This grade’s own name | — | — | — | — |
| 2S124 This grade’s own name | — | — | — | — |
| 2S129 | 1.4541 | Stainless steels | ≤ 0.08 | 25 |
| 2S130 | 1.4544 | Special steels for aviation and aerospace | ≤ 0.08 | 6 |
| 2S135 | 1.3505 | Bearing steels | 0.93–1.05 | 22 |
| 2S140 This grade’s own name | — | — | — | — |
| 2S142 This grade’s own name | — | — | — | — |
| 2S92 This grade’s own name | — | — | — | — |
| 2S93 This grade’s own name | — | — | — | — |
| 2S97 This grade’s own name | — | — | — | — |
| 2S98D This grade’s own name | — | — | — | — |
| 2T66 | 1.4544 | Special steels for aviation and aerospace | ≤ 0.08 | 6 |
| 3 S.144 | 1.4546 | Special steels for aviation and aerospace | ≤ 0.08 | 5 |
| 300 | EN-JL1050 | Others | — | 22 |
| 301 S 21 | 1.4305 | Stainless steels | ≤ 0.1 | 17 |
| 301 S 21 | 1.4325 | Stainless steels | 0.03–0.15 | 11 |
| 301 S 22 | 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.