DIN / EN steel grades — 4704 designations — Page 29
Every grade designated under DIN / EN, 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. 11 of 50 rows differ and carry an “Indicative” mark.
Also known as
4704 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| Ck 25 Withdrawn | 1.1158 | Quenched and tempered steels | 0.22–0.29 | 12 |
| Ck 30 Withdrawn | 1.1178 | Quenched and tempered steels | 0.27–0.34 | 13 |
| Ck 35 Withdrawn | 1.1181 | Quenched and tempered steels | 0.32–0.39 | 20 |
| Ck 4 Withdrawn | 1.1005 | Others | ≤ 0.04 | — |
| Ck 40 Withdrawn | 1.1186 | Quenched and tempered steels | 0.37–0.44 | 16 |
| Ck 45 Withdrawn | 1.1191 | Quenched and tempered steels | 0.42–0.5 | 21 |
| Ck 45 Pb Withdrawn | 1.1195 | Others | 0.42–0.5 | — |
| Ck 48 Mn Withdrawn | 1.1198 | Others | 0.45–0.51 | — |
| Ck 5 Withdrawn | 1.1010 | Others | ≤ 0.07 | — |
| Ck 50 Withdrawn | 1.1206 | Quenched and tempered steels | 0.47–0.55 | 17 |
| Ck 53 Withdrawn | 1.1210 | Steels for surface hardening | 0.5–0.57 | 8 |
| Ck 55 Withdrawn | 1.1203 | Quenched and tempered steels | 0.52–0.6 | 15 |
| Ck 6 Withdrawn | 1.1107 | Others | ≤ 0.08 | — |
| Ck 60 Withdrawn | 1.1221 | Quenched and tempered steels | 0.57–0.65 | 18 |
| Ck 60 Pb Withdrawn | 1.1227 | Others | 0.57–0.65 | — |
| Ck 67 Withdrawn | 1.1231 | Spring steels | 0.65–0.73 | 18 |
| Ck 68 Withdrawn | 1.1234 | Others | 0.6–0.75 | 9 |
| Ck 7 Withdrawn | 1.1009 | Others | ≤ 0.08 | — |
| Ck 75 Withdrawn | 1.1248 | Spring steels | 0.7–0.8 | 11 |
| Ck 75 Pb Withdrawn | 1.1245 | Others | 0.7–0.8 | — |
| Ck 8 Withdrawn | 1.1008 | Others | 0.05–0.1 | — |
| Ck 85 Withdrawn | 1.1269 | Spring steels | 0.8–0.9 | 14 |
| Ck 85 Pb Withdrawn | 1.1267 | Others | 0.8–0.9 | — |
| Ck10 Indicative | 1.1207 | Case hardening steels | 0.07–0.13 | 5 |
| Ck10 Indicative | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| Ck15 Indicative | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| Ck15 Indicative | 1.1140 | Case hardening steels | 0.12–0.18 | 7 |
| Ck15 Indicative | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| Ck30 Indicative | 1.0528 | Quenched and tempered steels | 0.27–0.34 | 14 |
| Ck40 Indicative | 1.0511 | Quenched and tempered steels | 0.37–0.44 | 21 |
| Ck45 IndicativeWithdrawn | 1.1191 | Others | 0.42–0.5 | 18 |
| Ck50 Indicative | 1.0540 | Quenched and tempered steels | 0.47–0.55 | 13 |
| Ck55 Indicative | 1.1204 | Others | 0.52–0.6 | 5 |
| Ck60 Indicative | 1.1211 | Spring steels | 0.57–0.65 | 5 |
| Cm 15 Withdrawn | 1.1140 | Case hardening steels | 0.12–0.18 | 7 |
| Cm 22 Withdrawn | 1.1149 | Quenched and tempered steels | 0.17–0.24 | 7 |
| Cm 25 Withdrawn | 1.1163 | Quenched and tempered steels | 0.22–0.29 | 6 |
| Cm 30 Withdrawn | 1.1179 | Quenched and tempered steels | 0.27–0.34 | 8 |
| Cm 35 Withdrawn | 1.1180 | Quenched and tempered steels | 0.32–0.39 | 11 |
| Cm 40 Withdrawn | 1.1189 | Quenched and tempered steels | 0.37–0.44 | 8 |
| Cm 45 Withdrawn | 1.1201 | Quenched and tempered steels | 0.42–0.5 | 11 |
| Cm 45 Pb Withdrawn | 1.1218 | Others | 0.42–0.5 | — |
| Cm 50 Withdrawn | 1.1241 | Steels for surface hardening | 0.47–0.55 | 8 |
| Cm 53 Withdrawn | 1.1205 | Others | 0.5–0.55 | — |
| Cm 55 Withdrawn | 1.1209 | Others | 0.52–0.6 | 8 |
| Cm 60 Withdrawn | 1.1223 | Quenched and tempered steels | 0.57–0.65 | 4 |
| Cm 60 Pb Withdrawn | 1.1225 | Others | 0.57–0.65 | — |
| CoCr20Ni15Mo | 2.4711 | Others | ≤ 0.15 | 1 |
| CoCr20Ni20W | 2.4989 | Nickel and cobalt alloys | 0.4 | — |
| CoCr20W15Ni | 2.4964 | High-temperature steels / aviation variant | 0.05–0.15 | 4 |
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.