Performance characteristics:
Vacuum deairing with fine steel, it is easy for cutting after quenching , high hardness, good abrasion resistance , dimension stability and minimal distortion.

Applications:
It is suitable for cutting tools, such as broach, filament hammer and gauge and complex shape of cold mould, plastic mould, precise screw, etc.

Chemical Composition (%):
C 0.85¡«0.95 Si 0.40 Mn 0.90¡«1.20
S 0.030 P 0.030 Cr 0.50¡«0.80
Ni 0.25 Cu 0.30 W 0.70¡«1.2

Heat Treatment Standard:
Quenching, 800 ~ 830 centigrade cold oil.

Forging:
Oil quenching cold die has crack sensitivity,so it should not be quickly heated,it had better for a preheating in 650-750 centigrade .The temperature of forging is 1130-1150 centigrade, eventually temperature should be more than 800-850 centigrade, steel ingot take upper limit temperature.while blank forging take lower temperature.

Delivery condition: Annealing.



Under the client's requirement.