Home > Company News > HMD5 (fire hardening steel)
Company News
HMD5 is a mold material that is easy to quench with burners, has a uniformly high hardness, and has excellent machinability. It also has the characteristics of high toughness and easy welding repair.
HMD5 features:
A wide range of quenching temperatures.
Even the use of burner heating is not easy to appear uneven hardness, so that the frame hardware is stable.
- Quenching cooling can be retained for air cooling.
High hardenability, after heating with a burner, direct air cooling can be fully quenched.
- Small quenching distortion.
For automotive molds, the frame hardware surface can be used without modification.
- Excellent toughness.
It has excellent toughness and almost no risk of chipping or cracking during use.
- Good wear resistance.
HMD5 has the same wear resistance as SKS3.
- Good machinability.
HMD5 has the same processability as SK120.
· Easy to repair.
Even if you build after the framework hardware, you don't have to worry about cracking.
HMD5 Usage:
· Plate mold
Trimming mold
Punching mold
Bending die
Drawing mold
Equal cold forming die.
Frame hardening heating temperature: 940-1100℃
Heat treatment conditions for quenching
Quenching: 850℃ ~ 900℃ oil cooling
Tempering: 150℃ ~ 200℃