ASTM A681 Grade Type P20
Equivalent material: DIN 1.2311, DIN 40CrMnMo7, UNI 35CrMo8KU, AISI P20, SAE P20, JIS SKT3, EN 40CrMnMo7, EN 1.2311
ASTM A681 Grade Type P20 general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.72 - 8 g/cm³ |
Typical for Tool And Machining Steel |
ASTM A681 Grade Type P20 thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1E-5 - 1.3E-5 1/K |
Typical for Tool And Machining Steel |
| Melting point |
- |
Melting point of 1370 - 1425 °C |
Typical for Tool And Machining Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 420 - 460 J/(kg·K) |
Typical for Tool And Machining Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 17 - 42 W/(m·K) |
Typical for Tool And Machining Steel |
ASTM A681 Grade Type P20 chemical
| Property |
Value |
| Carbon |
Carbon of 0.28 - 0.4 % |
| Chromium |
Chromium of 1.4 - 2 % |
| Manganese |
Manganese of 0.6 - 1 % |
| Molybdenum |
Molybdenum of 0.3 - 0.55 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.2 - 0.8 % |
| Sulfur |
Sulfur of 0.03 % |
ASTM A681 Grade Type P20 mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 203 - 211 GPa |
Typical for Tool And Machining Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Tool And Machining Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 79 GPa |
Typical for Tool And Machining Steel |
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