P20 STEEL
P20 STEEL
Chi tiết sản phẩm1. Product charateristics
- Steel for a plastic mold steel with available hardness 28 - 36 HRC
- Suitable for medium and large sized molds, with good weldability and machinability
- Has good polishing and spark processing ability.
- Excellent machinability, uniform hardness everywhere
- Low sulfur content, homogeneous and pure structure.
- High polishing, EDM and photochemical ability.
2. Chemical Composition
|
Standard |
Chemical Composition Rate ( Wt, % ) |
||||||
|
C |
Si |
Mn |
Cr |
Mo |
P |
S |
|
|
P20 (1.2311) |
0.35 |
0.2 |
1.3 |
1.8 |
0.15 |
|
|
|
0.45 |
0.4 |
1.5 |
2.1 |
0.2 |
0.035 |
0.035 |
|
- Heat treament Process
|
Steel |
Annealing |
Quenching |
Tempering |
||||
|
Temperature (°C) |
Hardness |
Temperature (°C) |
Oil |
Temperature (°C) |
Air |
Hardness |
|
|
P20 (1.2311) |
810~830 |
≤ 320 |
800~850 |
200~250 |
≥ 50 |
||
- Heat treatment method
|
Steel |
Heat treatment method |
||||
|
vacuum heat treatment |
Quenching |
Nitriding |
Carburizing |
||
|
P20 (1.2311) |
- |
MAX: |
MAX: |
MAX: |
|
|
53-55 HRC |
750-800 HV |
58-60 HRC |
|||
5. Apllications
Injection mold, blow mold, shaping mold, Melamine compression mold... Furnace head for extrusion machine, machine parts, shaft...
