GB steel grades — 1318 designations — Page 15
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 asserted identity — the same grade under this standard’s own designation. 20 of 50 rows differ and carry an “Indicative” mark.
Also known as
1318 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 70Mn | — | — | 0.67–0.75 | — |
| 70Si2CrA | — | — | 0.65–0.75 | — |
| 75 Indicative | 1.0614 | Spring steels | 0.73–0.78 | 5 |
| 7Cr17 Indicative | 1.4040 | Others | 0.6–0.75 | 6 |
| 7Cr17 Indicative | 1.4109 | Stainless steels | 0.6–0.75 | 10 |
| 7Cr7Mo2V2Si | — | — | 0.68–0.78 | — |
| 7CrMn2Mo | — | — | 0.65–0.75 | — |
| 7CrSiMnMoV | — | — | 0.65–0.75 | — |
| 7Mn15Cr2Al3V2WMo | — | — | 0.65–0.75 | — |
| 80 | 1.1165 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 80Cr20Si2Ni | — | — | 0.75–0.85 | — |
| 85 Indicative | 1.0616 | Spring steels | 0.83–0.88 | 8 |
| 85 Indicative | 1.1269 | Spring steels | 0.8–0.9 | 14 |
| 85Cr17 | — | — | 0.75–0.95 | — |
| 8Cr17 Indicative | 1.4041 | Stainless steels | 0.75–0.95 | 6 |
| 8Cr17 Indicative | 1.4112 | Stainless steels | 0.85–0.95 | 13 |
| 8Cr2MnWMoVS | — | — | 0.75–0.85 | — |
| 8Cr2MoV | — | — | 0.7–0.9 | — |
| 8Cr3 | — | — | 0.75–0.85 | 1 |
| 8Cr5Mo | — | — | 0.7–0.9 | — |
| 8Cr5MoV | — | — | 0.7–0.9 | — |
| 8CrV Indicative | 1.2235 | Tool steels for cold work | 0.75–0.85 | 13 |
| 90Cr18MoV | — | — | 0.85–0.95 | — |
| 95Cr18 | — | — | 0.9–1 | — |
| 9Cr18 Indicative | 1.3544 | Bearing steels | 0.95–1.1 | 5 |
| 9Cr18 Indicative | 1.4023 | Others | 0.95–1.2 | 6 |
| 9Cr18 Indicative | 1.4125 | Stainless steels | 0.95–1.2 | 11 |
| 9Cr18MoV | — | — | 0.85–0.95 | — |
| 9Cr2 | — | — | 0.8–0.95 | — |
| 9Cr2Mo | — | — | 0.85–0.95 | — |
| 9Cr2MoV | — | — | 0.8–0.9 | — |
| 9Cr2V | — | — | 0.85–0.95 | — |
| 9Cr3Mo | — | — | 0.85–0.95 | — |
| 9Cr3MoV | — | — | 0.85–0.95 | — |
| 9Cr5Mo1V | — | — | 0.85–0.95 | — |
| 9Cr5NiMoV | — | — | 0.82–0.9 | — |
| 9CrWMn Indicative | 1.2510 | Tool steels for cold work | 0.9–1.05 | 13 |
| 9Mn2V Indicative | 1.2842 | Tool steels for cold work | 0.85–0.95 | 14 |
| 9SiCr Indicative | 1.2067 | Tool steels for cold work | 0.95–1.1 | 21 |
| A | — | — | ≤ 0.21 | — |
| A3 Indicative | 1.0028 | Unalloyed structural steels | ≤ 0.15 | 18 |
| A3 Indicative | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| A3 Indicative | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| A3 Indicative | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| A42202 Indicative | 1.5919 | Case hardening steels | 0.12–0.18 | 11 |
| A42203 Indicative | 1.5919 | Case hardening steels | 0.12–0.18 | 11 |
| AH32 | — | — | ≤ 0.18 | — |
| AH36 | — | — | ≤ 0.18 | — |
| AH40 | — | — | ≤ 0.18 | — |
| B | — | — | ≤ 0.21 | — |
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.