SAE J438b Grade H12
Equivalent material: DIN 1.2606, DIN X37CrMoW5-1, UNI X35CrMoW05KU, UNE F.537, AISI H12, EN 1.2606, ASTM Type H12, UNS T20812
SAE J438b Grade H12 general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.72 - 8 g/cm³ |
Typical for Tool And Machining Steel |
SAE J438b Grade H12 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 |
SAE J438b Grade H12 chemical
| Property |
Value |
| Carbon |
Carbon of 0.3 - 0.4 % |
| Chromium |
Chromium of 4.75 - 5.5 % |
| Manganese |
Manganese of 0.2 - 0.4 % |
| Molybdenum |
Molybdenum of 1.25 - 1.75 % |
| Silicon |
Silicon of 0.8 - 1.2 % |
| Tungsten |
Tungsten of 1 - 1.7 % |
| Vanadium |
Vanadium of 0.1 - 0.5 % |
SAE J438b Grade H12 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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