EN 10269 Grade 21CrMoV5-7 Cold‑Sheared Steel for High‑Temperature Fasteners
High-temperature steel for screws and nuts. Max. application temperature: 540 °C Further application for mounting elements at increased temperatures.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.84 - 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | -100.0 °C | 217 GPa | |
20.0 °C | 211 - 212 GPa | ||
100.0 °C | 204 - 207 GPa | ||
200.0 °C | 196 - 199 GPa | ||
300.0 °C | 186 - 192 GPa | ||
400.0 °C | 177 - 184 GPa | ||
500.0 °C | 164 - 175 GPa | ||
600.0 °C | 127 - 164 GPa | ||
Hardness, Brinell | 20.0 °C | 255 [-] | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Chromium Molybdenum Steel |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1.05E-5 1/K | |
20.0 °C | 1.15E-5 1/K | ||
100.0 °C | 1.11E-5 - 1.21E-5 1/K | ||
200.0 °C | 1.21E-5 - 1.27E-5 1/K | ||
300.0 °C | 1.29E-5 - 1.32E-5 1/K | ||
400.0 °C | 1.35E-5 - 1.36E-5 1/K | ||
500.0 °C | 1.39E-5 - 1.4E-5 1/K | ||
600.0 °C | 1.41E-5 - 1.44E-5 1/K | ||
Max service temperature, long | 0 - 540 °C | ||
Melting point | 1382 - 1529 °C | Typical for Chromium Molybdenum Steel | |
Specific heat capacity | -100.0 °C | 423 J/(kg·K) | |
20.0 °C | 460 - 461 J/(kg·K) | ||
100.0 °C | 479 J/(kg·K) | ||
200.0 °C | 499 J/(kg·K) | ||
300.0 °C | 517 J/(kg·K) | ||
400.0 °C | 536 J/(kg·K) | ||
500.0 °C | 558 J/(kg·K) | ||
600.0 °C | 587 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 33 - 34.6 W/(m·K) | |
100.0 °C | 36.9 W/(m·K) | ||
200.0 °C | 37.3 W/(m·K) | ||
300.0 °C | 36.9 W/(m·K) | ||
400.0 °C | 35.8 W/(m·K) | ||
500.0 °C | 34.4 W/(m·K) | ||
600.0 °C | 32.9 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 9.6 mm²/s | |
100.0 °C | 9.5 mm²/s | ||
200.0 °C | 9 mm²/s | ||
300.0 °C | 8.4 mm²/s | ||
400.0 °C | 7.6 mm²/s | ||
500.0 °C | 6.6 mm²/s | ||
600.0 °C | 5.5 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 3.01E-7 Ω·m |
100.0 °C | 3.47E-7 Ω·m | |
200.0 °C | 4.23E-7 Ω·m | |
300.0 °C | 5.09E-7 Ω·m | |
400.0 °C | 6.08E-7 Ω·m | |
500.0 °C | 7.19E-7 Ω·m | |
600.0 °C | 8.43E-7 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.03 % |
Carbon | 0.17 - 0.25 % |
Chromium | 1.2 - 1.5 % |
Manganese | 0.4 - 0.8 % |
Molybdenum | 0.55 - 0.8 % |
Nickel | 0.6 % |
Phosphorus | 0.03 % |
Silicon | 0.4 % |
Sulfur | 0.03 % |
Vanadium | 0.2 - 0.35 % |
Metal
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