JIS G4805 Grade 20Cr4 isothermally treated to ferrite-perlite structure and hardness range
Equivalent material: DIN 1.7027, DIN 20Cr4, JIS SCr420M, JIS SCr420TK, JIS SCr420HRCH, JIS SCr420RCH, JIS SCr420WCH, JIS SCr22H, JIS SCr420H, JIS SCr420, EN 20Cr4, EN 1.7027
JIS G4805 Grade 20Cr4 isothermally treated to ferrite-perlite structure and hardness range general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Chromium Steel |
JIS G4805 Grade 20Cr4 isothermally treated to ferrite-perlite structure and hardness range thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 9.4E-6 - 1.5E-5 1/K |
Typical for Chromium Steel |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Chromium Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 440 - 494 J/(kg·K) |
Typical for Chromium Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 23 - 50 W/(m·K) |
Typical for Chromium Steel |
JIS G4805 Grade 20Cr4 isothermally treated to ferrite-perlite structure and hardness range mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Chromium Steel |
| Hardness, Brinell |
23.0 °C |
Hardness, Brinell of 140 - 187 [-] |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Chromium Steel |
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