20MnCr5 steel is case-hardening steel with low carbon content but good hardenability reaching good wear resistance due to high surface hardness after hardening. The performance obtained after heat treatment is better than 20Cr. The quenching deformation is small, the low temperature toughness is good, and the machinability is good; but the welding performance is low. Generally used after carburizing, quenching or quenching and tempering.
20MnCr5 material equivalent steel grades:
| EN/ DIN /NF | ISO | ASTM | GB |
| 20MnCr5
(1.7147) |
20MnCr5 | 5120 | 20CrMnH; 20CrMn |
20MnCr5 mechanical properties:
Yield Rp0.2 (MPa):764 (≥)
Tensile Rm (MPa):464 (≥)
Impact KV/Ku (J):43
Elongation A (%):43
Reduction Z (%):22
