C : 0.50～0.60
Si: 0.25～0.60
Mn: 1.20～1.60
S : ≤0.030
P : ≤0.030
Cr: 0.60～0.90
Ni: ≤0.25
Cu: ≤0.30
Mo: 0.15～0.30
characteristics
The steel is hot die steel, in addition to the hardenability, heat resisting fatigue sex is a bit poor outside, 5 crmnmo steel with 5 crnimo steel similar performance, h is a bit poor. This steel suitable for making requirements with high strength and high wear resistance of various types die. Ask toughness high, can use electroslag remelting steel.