P20 1.2311 3Cr2Mo Special Alloy Plastic Mould Steel HRC28-32
1. Features
- Good machining performance
- Excellent polishability
- Uniform hardness
- Higher heat hardness
- High wear resistance
- High hardenability
2. Similar Standards
Chinese |
American |
Germany |
Japanese |
Swedish |
GB |
AISI/ASTM |
DIN |
JIS |
ASSAB |
3Cr2Mo |
P20 |
1.2311 |
PDS-3 |
618 |
3. Chemical Composition
Grades |
C |
Si |
Mn |
P |
S |
Mo |
Ni |
Cr |
1.2311 |
0.37-0.42 |
≤0.40 |
1.40-1.60 |
/ |
≤0.005 |
0.15-0.25 |
0.4 |
1.80-2.10 |
P20/3Cr2Mo |
0.28-0.40 |
0.20-0.80 |
0.60-1.00 |
≤0.03 |
≤0.03 |
0.30-0.55 |
0.05-0.1 |
1.40-2.00 |
4. Heat Treatment
Quenching |
Tempering |
Heating Temperature/ºC |
Cooling |
Hardness/HRC |
Heating Temperature/ºC |
Cooling |
Hardness/HRC |
850-800 |
Oil |
50-52 |
580-640 |
Air |
28-36 |
5. Stock Size
Plate |
Thickness |
10-250mm |
Round Bar |
Diameter |
12-120mm |
Width |
2200mm |
Length |
4000-6000mm |
Length |
4000-10000mm |
|
|
|
Flat bar |
Thickness |
10-250mm |
Die Block |
Thickness |
250-800mm |
Width |
155-1000mm |
Width |
800-1600mm |
Length |
2200mm |
Length |
2000-6000mm |
6. Applications
1.Thermoplastic plastic injection mold, extrusion mold.
2. Used in die casting molds of zinc, magnesium, aluminum and their alloys
3. Thermoplastic blow molding dies.
4 Heavy load main parts of the mold.
5. Cold structural parts.
6. Commonly used in the manufacture of TV cases, washing machines, refrigerator inner casings, buckets, etc.
7. Automobile bumper mould
8. Suitable for plastic molds and formwork for TV front case, telephone, water dispenser, vacuum cleaner, etc
7. Product photos