CASE-HARDENING STEEL
Steels for carburizing and case hardening typically have a relatively low carbon level, 0.10-0.25% C, and are used when there is a demand for varying properties, such as for components in transmission systems.
Case-Hardening Steel
EN-standard | Ovako | Comments | C | Si | Mn | Cr | Mo | Ni | Other |
---|---|---|---|---|---|---|---|---|---|
16MnCr5 | 234, 4306 | For small-sized transmission components, low core hardness | 0.16 | 0.2 | 1.2 | 1.0 | |||
20MnCr5 | 236, 4326 | For small-sized transmission components, moderate core hardness. | 0.20 | 0.2 | 1.3 | 1.2 | |||
18CrMo8-5* | 225 | Steel designed for nitriding but also suitable for carburising | 0.18 | 0.3 | 0.8 | 1.8 | 0.5 | ||
20MoCr4 | 124 | For small-sized bearing and transmission components | 0.20 | 0.2 | 0.8 | 0.5 | 0.4 | ||
20NiCrMo2-2 | 152, 4548 | For small to medium-sized bearing and transmission components | 0.20 | 0.3 | 0.9 | 0.6 | 0.2 | 0.5 | |
16NiCrS4 | 146, 4730 | For medium-sized transmission components | 0.16 | 0.1 | 1.0 | 1.1 | 0.8 | ||
20NiCrMo7 | 157 | For medium-sized bearing and transmission components | 0.20 | 0.2 | 0.6 | 0.5 | 0.2 | 1.7 | |
18CrNiMo7-6 | 159, 4761 | For medium-sized bearing and transmission components | 0.18 | 0.2 | 0.7 | 1.7 | 0.3 | 1.6 | |
12NiCr14-6* | 245 | For large-sized bearing and transmission components | 0.13 | 0.3 | 0.5 | 1.5 | 0.1 | 3.3 | |
18NiCrMo 14-6 | 255 | For large-sized bearing and transmission components | 0.18 | 0.3 | 0.5 | 1.4 | 0.2 | 3.3 | |
22NiCrMo12·5* | 253 | For large-sized components requiring high core toughness. | 0.14 | 0.2 | 0.6 | 1.2 | 0.2 | 2.9 | |
24NiCrMo15-5* | 256 | For large-sized components requiring high core toughness | 0.24 | 0.3 | 0.7 | 1.2 | 0.3 | 3.6 | |
20NiMo9-7* | 158 | Steel giving reduced surface oxidation after gas carburising | 0.20 | 0.1 | 0.3 | 0.4 | 0.7 | 2.3 | |
30MoCrV20-7 * | 499 | Temperature resistant carburising steel | 0.30 | 0.2 | 0.3 | 1.7 | 1.8 | V | |
16CrMnNiMo9-5-2* | 277 | High hardenability grade. Possible to gas/air harden | 0.16 | 0.2 | 1.3 | 2.1 | 0.5 | 0.5 | V |