DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT)
DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT) introduction
GS-C 22 Mo 4 is used for turbine parts and pressure vessels at low temperature (300 to 450 °C) and medium pressure, e.g. for housings and armatures.
Equivalent material: BS B1, UNI G20Mo5, JIS SCPH11, PN L20M, MSZ Aö18Mo, DIN G20Mo5, DIN 1.5419, DIN 22Mo4, BS 1503-243-430, UNI G22Mo5, SS 2512, AISI 4419, SAE 4419, EN GS-22Mo4, EN G20Mo5, EN 1.5419
DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.22E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.29E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.34E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.39E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.43E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.46E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 300 - 610 °C |
- |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Molybdenum Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 460 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 50 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 46 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 42 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 38 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 34 W/(m·K) |
- |
DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.18 - 0.23 % |
| Chromium |
Chromium of 0.3 % |
| Manganese |
Manganese of 0.5 - 0.8 % |
| Molybdenum |
Molybdenum of 0.35 - 0.45 % |
| Phosphorus |
Phosphorus of 0.02 % |
| Silicon |
Silicon of 0.3 - 0.6 % |
| Sulfur |
Sulfur of 0.015 % |
DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.6E-7 Ω·m |
DIN 17245 Grade GS-22Mo4 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 211 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 204 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 196 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 186 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 177 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 164 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 127 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 22 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Molybdenum Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 440 - 590 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 245 MPa |
- |
| Yield strength Rp0.2 |
200.0 °C |
Yield strength Rp0.2 of 190 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 165 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 155 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 150 MPa |
- |
| - |
450.0 °C |
Yield strength Rp0.2 of 145 MPa |
- |
| - |
500.0 °C |
Yield strength Rp0.2 of 135 MPa |
- |
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