EN 10269 Grade 21CrMoV5-7 quenched and tempered (+QT)
EN 10269 Grade 21CrMoV5-7 quenched and tempered (+QT) introduction
High-temperature steel for screws and nuts. Max. application temperature: 540 °C
Further application for mounting elements at increased temperatures.
Equivalent material: AFNOR 20CDV5.08, GOST 25Ch1MF, ISO 21CrMoV5-7, ÖNORM 21CrMoV5-7S, PN 26H2MF, DIN 21CrMoV5-7, IS 21Cr5Mo7V3, DIN GA, DIN 1.7709, EN 1.7709
EN 10269 Grade 21CrMoV5-7 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.84 - 7.85 g/cm³ |
EN 10269 Grade 21CrMoV5-7 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 |
- |
| Max service temperature, long |
- |
Max service temperature, long of 0 - 540 °C |
- |
| 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 460 - 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 33 - 34.6 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 36.9 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 37.3 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 36.9 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 35.8 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 34.4 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 32.9 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 9.6 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 9.5 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 9 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 8.4 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 7.6 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 6.6 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.5 mm²/s |
- |
EN 10269 Grade 21CrMoV5-7 quenched and tempered (+QT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.03 % |
| Carbon |
Carbon of 0.17 - 0.25 % |
| Chromium |
Chromium of 1.2 - 1.5 % |
| Manganese |
Manganese of 0.4 - 0.8 % |
| Molybdenum |
Molybdenum of 0.55 - 0.8 % |
| Nickel |
Nickel of 0.6 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.03 % |
| Vanadium |
Vanadium of 0.2 - 0.35 % |
EN 10269 Grade 21CrMoV5-7 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 3.01E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.47E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 4.23E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 5.09E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 6.08E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 7.19E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.43E-7 Ω·m |
EN 10269 Grade 21CrMoV5-7 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 211 - 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 204 - 207 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 196 - 199 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 186 - 192 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 177 - 184 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 164 - 175 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 127 - 164 GPa |
- |
| Elongation |
20.0 °C |
Elongation 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 60 % |
- |
| Tensile strength |
20.0 °C |
Tensile strength of 700 - 850 MPa |
- |
| - |
300.0 °C |
Tensile strength of 590 MPa |
- |
| - |
350.0 °C |
Tensile strength of 560 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 550 MPa |
- |
| - |
50.0 °C |
Yield strength Rp0.2 of 542 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 530 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 515 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 500 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 480 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 460 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 435 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 410 MPa |
- |
| - |
450.0 °C |
Yield strength Rp0.2 of 380 MPa |
- |
| - |
500.0 °C |
Yield strength Rp0.2 of 350 MPa |
- |
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