GB steel grades — 1318 designations — Page 11
Every grade designated under GB, 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. 24 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
1318 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 35A This grade’s own name | — | — | 0.32–0.39 | — |
| 35Cr | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 35Cr | 1.7033 | Quenched and tempered steels | 0.3–0.37 | 18 |
| 35Cr2Ni4Mo This grade’s own name | — | — | 0.32–0.39 | — |
| 35CrA This grade’s own name | — | — | 0.32–0.39 | — |
| 35CrMnSi This grade’s own name | — | — | 0.32–0.39 | — |
| 35CrMnSiA This grade’s own name | — | — | 0.32–0.39 | — |
| 35CrMo | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 35CrMo | — | — | — | 2 |
| 35CrMoA This grade’s own name | — | — | 0.32–0.4 | — |
| 35CrMoV This grade’s own name | — | — | 0.3–0.38 | — |
| 35Mn | 1.1183 | Steels for surface hardening | 0.33–0.39 | 7 |
| 35Mn2 | 1.1167 | Quenched and tempered steels | 0.32–0.4 | 17 |
| 35Mn2 | 1.1127 | Quenched and tempered steels | 0.34–0.42 | 6 |
| 35SiMn | 1.5122 | Quenched and tempered steels | 0.33–0.41 | 6 |
| 37CrNi3 This grade’s own name | — | — | 0.34–0.41 | — |
| 37SiMn2MoV This grade’s own name | — | — | 0.33–0.39 | — |
| 38CrA | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 38CrMoAl | 1.8509 | Nitriding steels | 0.38–0.45 | 16 |
| 38CrMoAlA This grade’s own name | — | — | 0.35–0.42 | — |
| 38CrSi This grade’s own name | — | — | 0.35–0.43 | — |
| 38Si2 This grade’s own name | 1.0901 | Others | 0.35–0.42 | 2 |
| 3Cr13 | 1.4028 | Stainless steels | 0.26–0.35 | 18 |
| 3Cr16 This grade’s own name | — | — | 0.25–0.4 | 1 |
| 3Cr17Mo This grade’s own name | — | — | 0.33–0.45 | — |
| 3Cr17NiMoV This grade’s own name | — | — | 0.32–0.4 | — |
| 3Cr2MnNiMo This grade’s own name | — | — | 0.32–0.4 | — |
| 3Cr2Mo | 1.2311 | Tool steels for cold work | 0.35–0.45 | 12 |
| 3Cr2Mo+S | 1.2312 | Tool steels for cold work | 0.35–0.45 | 5 |
| 3Cr2W8V | 1.2581 | Tool steels for hot work | 0.25–0.35 | 18 |
| 3Cr3Mo3V | 1.2365 | Tool steels for hot work | 0.28–0.35 | 18 |
| 3Cr3Mo3VCo3 This grade’s own name | — | — | 0.28–0.35 | — |
| 3Cr3Mo3W2V This grade’s own name | — | — | 0.32–0.42 | — |
| 40 | — | — | — | 3 |
| 40 | 1.0511 | Quenched and tempered steels | 0.37–0.44 | 21 |
| 40 This grade’s own name | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| 40B This grade’s own name | — | — | — | 1 |
| 40B This grade’s own name | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| 40Cr | 1.7045 | Steels for surface hardening | 0.38–0.44 | 9 |
| 40Cr | 1.7035 | Quenched and tempered steels | 0.38–0.45 | 18 |
| 40Cr | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 40Cr10Si2Mo This grade’s own name | — | — | 0.35–0.45 | — |
| 40Cr13 This grade’s own name | — | — | 0.36–0.45 | — |
| 40CrA | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 40CrH | 1.7035 | Quenched and tempered steels | 0.38–0.45 | 18 |
| 40CrH | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 40CrMn This grade’s own name | — | — | 0.37–0.45 | — |
| 40CrMoA | 1.7223 | Steels for surface hardening | 0.38–0.44 | 13 |
| 40CrMoV5 | 1.2344 | Tool steels for hot work | 0.35–0.42 | 20 |
| 40CrNi | 1.5711 | Others | 0.38–0.43 | 8 |
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.