(1) unibody electrical and electronic mold;

(2) plastic mould and die holders;

(3) making main shaft of streamer, bolt for 400°C;

(4) making the hammer stem and aggravating drill pipe.

(1) High strength and toughness;

(2) Good hardenability and the quenching deformation is small;

(3) Good processability and easy polishing;

(4) Easy texture and platable;

(5) The strength and section are bigger than 35CrMo(4135).

Forging:1100~900°C    

Normalization:860~880°C    

Subcritical Annealing:680~720°C    Isothermal Annealing:830~900 670x3h°CHardening:830~860 oil

Tempering:550~650°C

Rm(MPa): 1080

Re(MPa): 930

Ae%: 12

Z%: 45

A(S): 63

hot rolled, black surface, annealed