GB steel grades — 1318 designations — Page 7
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. 10 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 |
|---|---|---|---|---|
| 16MnRE This grade’s own name | — | — | 0.12–0.2 | — |
| 17Cr16Ni2 This grade’s own name | — | — | 0.12–0.22 | — |
| 17Cr2Ni2Mo | 1.6587 | Case hardening steels | 0.15–0.21 | 15 |
| 18Cr11NiMoNbVN This grade’s own name | — | — | 0.15–0.2 | — |
| 18Cr12MoVNbN This grade’s own name | — | — | 0.15–0.2 | — |
| 18Cr2Ni4W This grade’s own name | — | — | 0.13–0.19 | — |
| 18Cr2Ni4WA This grade’s own name | — | — | 0.13–0.19 | — |
| 18CrMn | 1.7131 | Case hardening steels | 0.14–0.19 | 24 |
| 18CrMnNiMo This grade’s own name | — | — | 0.15–0.21 | — |
| 18MnMoNbR | 1.8905 | Fine-grain structural steels | ≤ 0.2 | 14 |
| 18MnMoNbR | 1.5218 | Others | 0.2–0.23 | 13 |
| 18Nb This grade’s own name | — | — | 0.14–0.22 | — |
| 19Mng This grade’s own name | — | — | 0.15–0.22 | — |
| 1Cr11MoV | 1.4922 | High-temperature steels | 0.17–0.23 | 7 |
| 1Cr12 | 1.4000 | Stainless steels | ≤ 0.08 | 16 |
| 1Cr12 | 1.4006 | Stainless steels | 0.08–0.15 | 26 |
| 1Cr13 | 1.4006 | Stainless steels | 0.08–0.15 | 26 |
| 1Cr15 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| 1Cr16Ni35 | 1.4864 | Heat resistant steels | ≤ 0.15 | 14 |
| 1Cr17 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| 1Cr17Mn6Ni5N | 1.4372 | Others | ≤ 0.15 | 10 |
| 1Cr17Mo | 1.4113 | Stainless steels | ≤ 0.08 | 10 |
| 1Cr17Ni2 | 1.4057 | Stainless steels | 0.12–0.22 | 17 |
| 1Cr17Ni7 | 1.4310 | Stainless steels | 0.05–0.15 | 18 |
| 1Cr17Ni8 This grade’s own name | — | — | 0.08–0.12 | 2 |
| 1Cr18Mn8Ni5N | 1.3965 | Non-magnetic steels | ≤ 0.1 | 9 |
| 1Cr18Mn8Ni5N | 1.4373 | Non-magnetic steels | ≤ 0.15 | 13 |
| 1Cr18Mn8Ni5N | 1.4731 | Valve steels | 0.35–0.45 | 12 |
| 1Cr18Ni11Nb | 1.4550 | Stainless steels | ≤ 0.08 | 15 |
| 1Cr18Ni11Nb | — | — | — | 4 |
| 1Cr18Ni11Ti | 1.4541 | Stainless steels | ≤ 0.08 | 25 |
| 1Cr18Ni12 | 1.4303 | Stainless steels | ≤ 0.06 | 14 |
| 1Cr18Ni12Mo2Ti | 1.4571 | Stainless steels | ≤ 0.08 | 18 |
| 1Cr18Ni12Mo2Ti | 1.4573 | Cast stainless steels | ≤ 0.04 | 12 |
| 1Cr18Ni12Mo3Ti | 1.4571 | Stainless steels | ≤ 0.08 | 18 |
| 1Cr18Ni12Mo3Ti | 1.4573 | Cast stainless steels | ≤ 0.04 | 12 |
| 1Cr18Ni12Mo3Ti | — | — | — | 1 |
| 1Cr18Ni9 | 1.4300 | Stainless steels | ≤ 0.12 | 15 |
| 1Cr18Ni9 | 1.4310 | Stainless steels | 0.05–0.15 | 18 |
| 1Cr18Ni9 | 1.4324 | Special steels for aviation and aerospace | ≤ 0.12 | 7 |
| 1Cr18Ni9 | 1.4325 | Stainless steels | 0.03–0.15 | 11 |
| 1Cr18Ni9MoZr | 1.4305 | Stainless steels | ≤ 0.1 | 17 |
| 1Cr18NI9T | 1.4541 | Stainless steels | ≤ 0.08 | 25 |
| 1Cr18Ni9Ti | 1.4878 | Heat resistant steels | ≤ 0.1 | 14 |
| 1Cr18Ni9Ti | 1.4541 | Stainless steels | ≤ 0.08 | 25 |
| 1Cr19Al3 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| 1Cr19Ni11Nb | — | — | — | 4 |
| 1Cr19Ni11Nb | 1.4550 | Stainless steels | ≤ 0.08 | 15 |
| 1Cr20Ni14Si2 | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
| 1Cr23Ni13 | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
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.