GB steel grades — 1318 designations — Page 16
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. 23 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 |
|---|---|---|---|---|
| Ck45 | 1.1191 | Others | 0.42–0.5 | 18 |
| Ck45 | 1.1191 | Quenched and tempered steels | 0.42–0.5 | 21 |
| Cr06 | 1.2008 | Tool steels for cold work | 1.35–1.5 | 9 |
| Cr12 | 1.2080 | Tool steels for cold work | 1.9–2.2 | 18 |
| Cr12 | 1.2060 | Tool steels for cold work | 1–1.1 | 15 |
| Cr12Mo1V1 | 1.2379 | Tool steels for cold work | 1.45–1.6 | 20 |
| Cr12Mo1V1 | 1.2601 | Tool steels for cold work | 1.55–1.75 | 15 |
| Cr12Mo1V1 | 1.2880 | Tool steels for cold work | 1.55–1.75 | 8 |
| Cr12Mo1V1 | 1.2880 | Others | 1.55–1.75 | 8 |
| Cr12MoV | 1.2379 | Tool steels for cold work | 1.45–1.6 | 20 |
| Cr12MoV | 1.2601 | Tool steels for cold work | 1.55–1.75 | 15 |
| Cr12MoV | 1.2880 | Tool steels for cold work | 1.55–1.75 | 8 |
| Cr12MoV | 1.2880 | Others | 1.55–1.75 | 8 |
| Cr12W | 1.2436 | Tool steels for cold work | 2–2.3 | 16 |
| Cr17 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| Cr17Ni12Mo3Mb | 1.4583 | Cast stainless steels | ≤ 0.1 | 5 |
| Cr17Ni7 | 1.4310 | Stainless steels | 0.05–0.15 | 18 |
| Cr18Ni12Mo2T | 1.4571 | Stainless steels | ≤ 0.08 | 18 |
| Cr2 | 1.2067 | Tool steels for cold work | 0.95–1.1 | 21 |
| Cr2 | 1.3505 | Bearing steels | 0.93–1.05 | 22 |
| Cr4W2MoV This grade’s own name | — | — | 1.12–1.25 | — |
| Cr5Mo1V | 1.2363 | Tool steels for cold work | 0.95–1.05 | 16 |
| Cr8 This grade’s own name | — | — | 1.6–1.9 | — |
| Cr8Mo2VSi This grade’s own name | — | — | 0.7–1.1 | — |
| Cr9SiMn | 1.3520 | Bearing steels | 0.93–1.05 | 16 |
| CrV | 1.2067 | Tool steels for cold work | 0.95–1.1 | 21 |
| CrV | 1.2210 | Tool steels for cold work | 1.1–1.25 | 13 |
| CrWMn | 1.2419 | Tool steels for cold work | 1–1.1 | 16 |
| CrWMo | 1.2419 | Tool steels for cold work | 1–1.1 | 16 |
| CrWV This grade’s own name | — | — | 1.05–1.15 | — |
| CW6Mo5Cr4V2 This grade’s own name | — | — | 0.86–0.94 | — |
| CW6Mo5Cr4V3 This grade’s own name | — | — | 1.25–1.32 | 4 |
| D This grade’s own name | — | — | ≤ 0.21 | — |
| DC01 This grade’s own name | 1.0330 | Unalloyed structural steels | ≤ 0.12 | 17 |
| DC03 This grade’s own name | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| DC04 This grade’s own name | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| DC05 This grade’s own name | 1.0312 | Unalloyed structural steels | ≤ 0.06 | 4 |
| DC06 This grade’s own name | 1.0873 | Unalloyed structural steels | ≤ 0.02 | 4 |
| DC07 This grade’s own name | 1.0898 | Unalloyed structural steels | ≤ 0.01 | 1 |
| DH36 This grade’s own name | — | — | ≤ 0.18 | — |
| DH40 This grade’s own name | — | — | ≤ 0.18 | — |
| E This grade’s own name | 1.0347 | Unalloyed structural steels | ≤ 0.1 | 12 |
| EH32 This grade’s own name | — | — | ≤ 0.18 | — |
| EH36 This grade’s own name | — | — | ≤ 0.18 | — |
| EH40 This grade’s own name | — | — | ≤ 0.18 | — |
| F12Mn2VBS This grade’s own name | — | — | 0.09–0.16 | — |
| FH32 This grade’s own name | — | — | ≤ 0.16 | — |
| FH36 This grade’s own name | — | — | ≤ 0.16 | — |
| FH40 This grade’s own name | — | — | ≤ 0.16 | — |
| G20CrNiMo | 1.6523 | Case hardening steels | 0.17–0.23 | 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.