1. Product charateristics
- High gloss precision plastic mold material with high cleanliness and uniform structure
- Polishability
- Impact touhness
- Machinability
- High cleanliness
2. Chemical Composition (SEAHCSS)
Standards |
Chemical Composition Rate ( Wt, % ) |
||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
V |
|
KP4M |
0.26 |
0.2 |
0.8 |
|
|
0.3 |
1.65 |
0.4 |
0.02 |
0.37 |
0.4 |
1.3 |
0.025 |
0.02 |
0.55 |
2.1 |
0.5 |
0.04 |
3. Heat treament method
Steel |
Heat treatment method |
|||
vacuum heat treatment |
Quenching & Tempering |
Nitriding |
Carburizing |
|
P4M |
- |
MAX: |
MAX: |
MAX: |
55-58 HRC |
750-800 HV |
60-62 HRC |
4. Apllications
- High gloss molds for mobile phone cases, consumer electronicss, OA machines, automobile parts (headamps, fog lights)
- High gloss TV front pannels and high precision plastics