P20+S
P20+S Grade Introduction:
P20+S steel has good cutting properties, usually uses plastic mold, Injection molding, and die mold. The P20+S steel materials delivery condition as per different customer requirements, usual delivery condition as Pre-hardness, hardness 28-34 HRc. Saaj steel is a professional AISI P20S tool steel supplier, Inventory, and manufacturer.
P20+S Grade Application:
- Support and injection molds
- Mold holders
- Zinc die casting molds
- Plastic molds
- High-strength steel applicable for various applications
- Axes and wear strips
P20+S Equivalent Grades:
| BS BP20S |
ASTMA681 |
GB 3Cr2MoS |
DIN 40CrMnMoS8-6 |
W-Nr 1.2312 |
UNS T51620S |
P20+S Chemical Composition:
| Element |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
| Content (%) |
0.35-0.45% |
0.30-0.50% |
1.40-1.60% |
0.030 Max |
0.05-0.10% |
1.80-2.00% |
0.15-0.25% |
Mechanical Properties:
| Property |
Value |
| Poisson’s Ratio |
0.27-0.30 |
| Izod Impact Unnotched |
28.0 J |
| Elastic Modulus |
190-210 GPa |
Thermal Properties:
| Thermal expansion: |
12 x 10-6/ºC, 20-100°C |
Forging Properties:
Slowly heat P20+S to 1050°C，start forging, ensure forging temperature no lower than 930°C.
Stress Relieving:
When dies made from P20+S are heavily machined, we recommend stabilizing the steel just before finish machining in order to relieve machining strains. Heat up to 460-500°C, soak well, and cool in the air.