SEW 400 Grade X20CrMo13 quenched and tempered (+QT)
SEW 400 Grade X20CrMo13 quenched and tempered (+QT) introduction
Steel X20CrMo13 shows increased thermal and corrosion resistance. Application in tempered condition at operating temperatures from 450 to 500 °C. for turbine blades, valve cones, valve seats in hot steam valves. The steel is suitable for mirror finishing. X20CrMo13 shows owing to the Mo-content higher thermal and corrosion resistance than the comparable steel 1.4021. No forming is designated.
Equivalent material: GB 2Cr12MoV, AFNOR Z20CD14, PN 3H17M, STAS 20MoCr130, DIN 1.4720, AISI 409, SAE 409, JIS SUH409L, JIS SUH409, EN 1.4720, UNS S40900
SEW 400 Grade X20CrMo13 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.7 - 7.76 g/cm³ |
SEW 400 Grade X20CrMo13 quenched and tempered (+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
20.0 °C |
Coefficient of thermal expansion of 1.02E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.04E-5 - 1.05E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.08E-5 - 1.09E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.12E-5 - 1.13E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.16E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.19E-5 - 1.2E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.22E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 0 - 500 °C |
- |
| Melting point |
- |
Melting point of 1425 - 1530 °C |
Typical for Ferritic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 430 - 439 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 474 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 498 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 538 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 564 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 598 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 24 - 25 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 24.4 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 24.8 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 25.1 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 25.6 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 26.1 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 26.4 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 7.1 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 6.3 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 6 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 5.4 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 4.9 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 4.1 mm²/s |
- |
SEW 400 Grade X20CrMo13 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.17 - 0.22 % |
| Chromium |
Chromium of 12 - 14 % |
| Manganese |
Manganese of 1 % |
| Molybdenum |
Molybdenum of 0.9 - 1.3 % |
| Nickel |
Nickel of 1 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.015 % |
SEW 400 Grade X20CrMo13 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 6.03E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 6.68E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 7.43E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 8.17E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 8.9E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 9.62E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 1.04E-6 Ω·m |
SEW 400 Grade X20CrMo13 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
20.0 °C |
Elastic modulus of 217.68 - 220 GPa |
| - |
100.0 °C |
Elastic modulus of 213 - 216 GPa |
| - |
200.0 °C |
Elastic modulus of 206 - 209 GPa |
| - |
300.0 °C |
Elastic modulus of 198 - 200 GPa |
| - |
400.0 °C |
Elastic modulus of 190 - 192 GPa |
| - |
500.0 °C |
Elastic modulus of 180 - 183 GPa |
| - |
600.0 °C |
Elastic modulus of 167 GPa |
| Elongation |
20.0 °C |
Elongation of 14 % |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 10 % |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 220 - 280 [-] |
| Hardness, Brinell, trans |
20.0 °C |
Hardness, Brinell, trans of 220 - 280 [-] |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| Shear modulus |
20.0 °C |
Shear modulus of 84.95 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 750 - 900 MPa |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 750 - 900 MPa |
| Yield strength |
20.0 °C |
Yield strength of 550 MPa |
| Yield strength Rp0.2 |
50.0 °C |
Yield strength Rp0.2 of 530 MPa |
| - |
100.0 °C |
Yield strength Rp0.2 of 520 MPa |
| - |
150.0 °C |
Yield strength Rp0.2 of 510 MPa |
| - |
200.0 °C |
Yield strength Rp0.2 of 500 MPa |
| - |
250.0 °C |
Yield strength Rp0.2 of 420 MPa |
| - |
300.0 °C |
Yield strength Rp0.2 of 480 MPa |
| - |
350.0 °C |
Yield strength Rp0.2 of 450 MPa |
| - |
400.0 °C |
Yield strength Rp0.2 of 410 MPa |
| Yield strength, transverse |
20.0 °C |
Yield strength, transverse of 550 MPa |
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