MKE steel grades — 8 designations
Every grade designated under MKE, 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. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute.
Also known as
8 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| Ç 1020 | 1.1151 | Quenched and tempered steels | 0.17–0.24 | 15 |
| Ç 1030 | 1.1181 | Quenched and tempered steels | 0.32–0.39 | 20 |
| Ç 1040 | 1.1186 | Quenched and tempered steels | 0.37–0.44 | 16 |
| Ç 1060 | 1.1221 | Quenched and tempered steels | 0.57–0.65 | 18 |
| Ç 4140 | 1.7225 | Quenched and tempered steels | 0.38–0.45 | 25 |
| Ç 4340 | 1.6562 | Quenched and tempered steels | 0.37–0.44 | 10 |
| Ç 5140 | 1.7035 | Quenched and tempered steels | 0.38–0.45 | 18 |
| Ç 6150 | 1.8159 | Quenched and tempered steels | 0.47–0.55 | 27 |
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Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.






