718H is a kind of plastic mold steel commonly used in plastic mold, It is Cr-Nickel-Molybdenum alloy steel with vacuum tempering.
Standard |
Chemical Composition Rate ( Wt, % ) |
|||||
C |
Mn |
Si |
Cr |
Mo |
Ni |
|
718 |
0.35 |
1.3 |
0.2 |
1.8 |
1.5 |
0.9 |
0.45 |
1.6 |
0.4 |
2.1 |
2.5 |
1.2 |
2. Apllications
- The mold is easy to fix. the surface hardness and wear resistance of the mold can be improved by nitriding and hardening the fire hole.
- Because of high hardness, better polishing, better wear resistance, higher tensile and compressive strength. 718H is suitable for plastic mold PA, POM, PS, PE, PP, ABS
- Available hardness of steel reaches 32-36 HRC.