4140 has good machinability and processing deformation resistance, as well as fatigue resistance, is a medium hardenability mold steel. 4140 die steel has good strength and comprehensive mechanical properties after heat treatment, good manufacturability and high yield.
4140 Chemical composition of die steel
| element | C | Si | Mn | Cr | Mo | Ni | P | S | Cu |
| content | 0.4 | 0.25 | 0.65 | 1.1 | 0.2 | 0.3 | 0.035 | 0.035 | 0.3 |
4140 die steel corresponding brand
Corresponding to its corresponding ISO grade :42CrMo4, JIS:SCM440, DIN:42CrMo4, GB:42CrMo.
