GB steel grades — 1318 designations — Page 25
Every grade designated under GB, with the identifying and comparative data we hold for each. 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. 16 of 50 rows differ and carry an “Indicative” mark.
Also known as
1318 designations| Grade | C% by weight | Also inother standards |
|---|---|---|
| W10Mo2Cr4V5Co8 | 1.55–1.67 | — |
| W10Mo4Cr4V3Co10 | 1.2–1.3 | — |
| W12Cr4V5Co5 Indicative | 1.3–1.45 | 12 |
| W18Cr4V Indicative | 0.73–0.83 | 22 |
| W18Cr4V2Co 8 | 0.75–0.85 | — |
| W18Cr4VCo4 Indicative | 0.75–0.83 | 14 |
| W18Cr4VCo5 Indicative | 0.75–0.83 | 14 |
| W2Mo8Cr4V | 0.77–0.87 | 2 |
| W2Mo9Cr4V2 | 0.95–1.05 | — |
| W2Mo9Cr4VCo8 Indicative | 1.05–1.15 | 14 |
| W3Mo3Cr4V2 | 0.95–1.03 | 1 |
| W4Mo3Cr4VSi | 0.83–0.93 | — |
| W50276 Indicative | 0.05–0.1 | 6 |
| W6Mo5Cr4V2 Indicative | 0.8–0.88 | 16 |
| W6Mo5Cr4V2 Indicative | 0.86–0.94 | 19 |
| W6Mo5Cr4V2Al | 1.05–1.15 | — |
| W6Mo5Cr4V2Co2 | 0.88–0.96 | — |
| W6Mo5Cr4V2Co5 Indicative | 0.87–0.95 | 19 |
| W6Mo5Cr4V3 | 1.15–1.25 | 4 |
| W6Mo5Cr4V3Co8 | 1.23–1.33 | 1 |
| W6Mo5Cr4V4 | 1.25–1.35 | 2 |
| W6Mo6Cr4V2 | 1–1.1 | — |
| W7Mo4Cr4V2Co5 | 1.05–1.15 | — |
| W7Mo7Cr4V7Co11 | 2.2–2.4 | — |
| W9Mo3Cr4V | 0.77–0.87 | — |
| X20Cr13 Indicative | 0.16–0.25 | 18 |
| X45CrSi93 Indicative | 0.4–0.5 | 16 |
| X45CrSi93 Indicative | 0.4–0.5 | 16 |
| Y06Cr17Mn6Ni6Cu2 | ≤ 0.08 | — |
| Y08 | ≤ 0.09 | 3 |
| Y08MnBi | ≤ 0.09 | — |
| Y08MnS | ≤ 0.09 | — |
| Y08Pb | ≤ 0.09 | — |
| Y08Sn | ≤ 0.09 | — |
| Y108Cr17 | 0.95–1.2 | — |
| Y10Cr17 | ≤ 0.12 | — |
| Y12 Indicative | 0.07–0.13 | 15 |
| Y12Cr13 | ≤ 0.15 | — |
| Y12Cr18Ni9 | ≤ 0.15 | — |
| Y12Cr18Ni9Cu3 | ≤ 0.15 | — |
| Y12Cr18Ni9Se | ≤ 0.15 | — |
| Y12Pb | ≤ 0.15 | — |
| Y13 Indicative | ≤ 0.14 | 11 |
| Y15 Indicative | ≤ 0.14 | 14 |
| Y15Mn | 0.14–0.2 | — |
| Y15MnS | 0.14–0.2 | — |
| Y15Pb Indicative | ≤ 0.14 | 11 |
| Y15S | 0.1–0.18 | — |
| Y15Sn | 0.13–0.18 | — |
| Y16Cr17Ni2 | 0.12–0.2 | — |
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Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.