P20 Mould Steel
P20 Mould Steel is commonly used for plastic injection mold cavities and tooling and for die casting dies for zinc. P20 is typically sold in the pre-hardened condition at a hardness of approximately 300 HBW.
Supply Form of P20 Mould Steel
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- Round
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- sheet
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- Plate
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- Square
Supply Range of P20 Mould Steel
P20 Steel Round Bar: diameter 1mm – 400mm Length :2000-4000m
P20 Steel Plate: thickness 1 –400mm x width 200– 1200mm
P20 Steel Block: 210mm x 500-810mm
Chemical Composition of P20 Mold Steel Material
| P20 | C | Mn | P | S | Si | Cr | V |
| 0.28-0.4 | 0.6-1 | 0.03 | 0.03 | 0.2-0.8 | 1.4-2 | … | |
| 1.2311 | C | Si | Mn | S | P | Cr | Mo |
| 0.35-0.45 | 0.2-0.4 | 1.3-1.6 | ≤0.035 | ≤0.035 | 1.8-2.1 | 0.15-0.25 | |
| ≈40CrMnMo7 | C | Si | Mn | S | P | Cr | Mo |
| 0.35-0.45 | 0.2-0.4 | 1.3-1.6 | ≤0.035 | ≤0.035 | 1.8-2.1 | 0.15-0.25 |
P20 Mould Steels Material Equivalent and Related Speciations
| ASTM | ROCT | W-Nr | DIN | GB |
| P20 | 5XrM | 1.2311 | 1.2311 | 3Cr2Mo |
ASTM P20 Steel Material Mechanical Properties
- Density: 0.284 lb/in3 (7861 kg/m3)
- Specific Gravity: 7.86
- Modulus of Elasticity: 30 x 106 psi (207 GPa)
- Thermal Conductivity:
- 24 Btu/ft/hr/°F
- 41.5 W/m/°K
- Machinability: 60-65% of a 1% carbon steel
Tempering
P20 steels are tempered at 482-593°C (900 to 1100°F) for a Rockwell C hardness of 37 to 28.
Annealing
Annealing takes place at 760-788°C (1400 to 1450°F) and then the steels are cooled slowly in the furnace at a temperature less than 4°C (40°F) per hour.
Cold Working
P20 steels are capable of being readily cold worked by using conventional tooling methods with the alloy in the annealed condition.
Welding
Conventional methods are used for welding of P20 tool steels.
Forging
P20 steels are forged at 1093°C (2000°F) down to 899°C (1650°F). Forging below 871°C (1600°F) is not recommended for these steels.
Forming
P20 steels can be readily formed by conventional methods in the annealed condition.
Machinability
P20 steels have excellent machinability at about 80% that of water hardening steels.
Heat Treatment
P20 steels are heated to 871-899°C (1600-1650°F) in the carburizing medium during the carburizing process. After being carburized, these steels are heated to 816-871°C (1500-1600°F) in order to be hardened and then held for 15 minutes and finally oil quenched.
Applications
P20 tool steels are used for low-temperature applications that include injection molds and die casting dies.
Quality assured by ISO 9001:2008 quality management system. Whatsmore, Our all P20 tool steel all had by SEP 1921-84 ultrasonic inspection (UT Test). Quality Grade: E/e, D/d, C/c.
If you have any P20 Tool steel inquiry and question for Price, Application, hot treatment, Please don’t hesitate to contact us.
Email: Jack@otaisteel.com
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