SEW 555 Grade 23CrMo5 quenched and tempered (+QT)
SEW 555 Grade 23CrMo5 quenched and tempered (+QT) introduction
High temperature steel for the turbine and generator construction.
Equivalent material: DIN 1.7255, EN 23CrMo5, EN 1.7255
SEW 555 Grade 23CrMo5 quenched and tempered (+QT) general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 7.83 g/cm³ |
SEW 555 Grade 23CrMo5 quenched and tempered (+QT) thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Coefficient of thermal expansion | -100.0 °C | Coefficient of thermal expansion of 1.05E-5 1/K | - |
| - | 20.0 °C | Coefficient of thermal expansion of 1.15E-5 1/K | - |
| - | 100.0 °C | Coefficient of thermal expansion of 1.11E-5 - 1.21E-5 1/K | - |
| - | 200.0 °C | Coefficient of thermal expansion of 1.21E-5 - 1.27E-5 1/K | - |
| - | 300.0 °C | Coefficient of thermal expansion of 1.29E-5 - 1.32E-5 1/K | - |
| - | 400.0 °C | Coefficient of thermal expansion of 1.35E-5 - 1.36E-5 1/K | - |
| - | 500.0 °C | Coefficient of thermal expansion of 1.39E-5 - 1.4E-5 1/K | - |
| - | 600.0 °C | Coefficient of thermal expansion of 1.41E-5 - 1.44E-5 1/K | - |
| Melting point | - | Melting point of 1382 - 1529 °C | Typical for Chromium Molybdenum Steel |
| Specific heat capacity | -100.0 °C | Specific heat capacity of 423 J/(kg·K) | - |
| - | 20.0 °C | Specific heat capacity of 461 J/(kg·K) | - |
| - | 100.0 °C | Specific heat capacity of 479 J/(kg·K) | - |
| - | 200.0 °C | Specific heat capacity of 499 J/(kg·K) | - |
| - | 300.0 °C | Specific heat capacity of 517 J/(kg·K) | - |
| - | 400.0 °C | Specific heat capacity of 536 J/(kg·K) | - |
| - | 500.0 °C | Specific heat capacity of 558 J/(kg·K) | - |
| - | 600.0 °C | Specific heat capacity of 587 J/(kg·K) | - |
| Thermal conductivity | 20.0 °C | Thermal conductivity of 41 W/(m·K) | - |
| - | 100.0 °C | Thermal conductivity of 41 - 42.7 W/(m·K) | - |
| - | 200.0 °C | Thermal conductivity of 42.8 - 45 W/(m·K) | - |
| - | 300.0 °C | Thermal conductivity of 41.6 - 46 W/(m·K) | - |
| - | 400.0 °C | Thermal conductivity of 39.9 - 44 W/(m·K) | - |
| - | 500.0 °C | Thermal conductivity of 37.8 - 39 W/(m·K) | - |
| - | 600.0 °C | Thermal conductivity of 35.6 - 36 W/(m·K) | - |
| Thermal diffusivity | 20.0 °C | Thermal diffusivity of 11.4 mm²/s | - |
| - | 100.0 °C | Thermal diffusivity of 11 mm²/s | - |
| - | 200.0 °C | Thermal diffusivity of 10.3 mm²/s | - |
| - | 300.0 °C | Thermal diffusivity of 9.5 mm²/s | - |
| - | 400.0 °C | Thermal diffusivity of 8.5 mm²/s | - |
| - | 500.0 °C | Thermal diffusivity of 7.3 mm²/s | - |
| - | 600.0 °C | Thermal diffusivity of 6 mm²/s | - |
SEW 555 Grade 23CrMo5 quenched and tempered (+QT) chemical
| Property | Value |
|---|---|
| Carbon | Carbon of 0.2 - 0.28 % |
| Chromium | Chromium of 0.9 - 1.2 % |
| Manganese | Manganese of 0.3 - 0.8 % |
| Molybdenum | Molybdenum of 0.2 - 0.35 % |
| Nickel | Nickel of 0.6 % |
| Phosphorus | Phosphorus of 0.02 % |
| Silicon | Silicon of 0.3 % |
| Sulfur | Sulfur of 0.02 % |
SEW 555 Grade 23CrMo5 quenched and tempered (+QT) electrical
| Property | Temperature | Value |
|---|---|---|
| Electrical resistivity | 20.0 °C | Electrical resistivity of 2.54E-7 Ω·m |
| - | 100.0 °C | Electrical resistivity of 3E-7 Ω·m |
| - | 200.0 °C | Electrical resistivity of 3.69E-7 Ω·m |
| - | 300.0 °C | Electrical resistivity of 4.51E-7 Ω·m |
| - | 400.0 °C | Electrical resistivity of 5.45E-7 Ω·m |
| - | 500.0 °C | Electrical resistivity of 6.54E-7 Ω·m |
| - | 600.0 °C | Electrical resistivity of 7.78E-7 Ω·m |
SEW 555 Grade 23CrMo5 quenched and tempered (+QT) mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Elastic modulus | -100.0 °C | Elastic modulus of 217 GPa | - |
| - | 20.0 °C | Elastic modulus of 212 GPa | - |
| - | 100.0 °C | Elastic modulus of 207 GPa | - |
| - | 200.0 °C | Elastic modulus of 199 - 200 GPa | - |
| - | 300.0 °C | Elastic modulus of 192 - 193 GPa | - |
| - | 400.0 °C | Elastic modulus of 184 GPa | - |
| - | 500.0 °C | Elastic modulus of 175 GPa | - |
| - | 600.0 °C | Elastic modulus of 164 GPa | - |
| Elongation | 20.0 °C | Elongation of 18 % | - |
| Elongation, transverse | 20.0 °C | Elongation, transverse of 16 % | - |
| Poisson's ratio | 23.0 °C | Poisson's ratio of 0.29 [-] | Typical for Chromium Molybdenum Steel |
| Reduction of area | 20.0 °C | Reduction of area of 40 % | - |
| Reduction of area, transverse | 20.0 °C | Reduction of area, transverse of 40 % | - |
| Tensile strength | 20.0 °C | Tensile strength of 550 - 700 MPa | - |
| Tensile strength, transverse | 20.0 °C | Tensile strength, transverse of 550 - 700 MPa | - |
| Yield strength Rp0.2 | 20.0 °C | Yield strength Rp0.2 of 400 MPa | - |
| - | 100.0 °C | Yield strength Rp0.2 of 375 MPa | - |
| - | 200.0 °C | Yield strength Rp0.2 of 350 MPa | - |
| - | 250.0 °C | Yield strength Rp0.2 of 330 MPa | - |
| - | 300.0 °C | Yield strength Rp0.2 of 305 MPa | - |
| - | 350.0 °C | Yield strength Rp0.2 of 285 MPa | - |
| - | 400.0 °C | Yield strength Rp0.2 of 265 MPa | - |
| - | 450.0 °C | Yield strength Rp0.2 of 225 MPa | - |
| Yield strength Rp0.2, transverse | 20.0 °C | Yield strength Rp0.2, transverse of 400 MPa | - |
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