EN 10277-5 Grade 41Cr4 – Cold-Drawn, Soft-Annealed Steel for Automotive & Mechanical Use
Steel 41 Cr 4 is suitable for mean loaded parts of mean heat-treatment sections in vehicle manufacturing, engine and machine engineering (e.g. gear wheels, transmission shafts, axles). Lowest application temp. -25 °C.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.83 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | -100.0 °C | 217 GPa |
20.0 °C | 212 GPa | |
100.0 °C | 207 GPa | |
200.0 °C | 199 GPa | |
300.0 °C | 192 GPa | |
400.0 °C | 184 GPa | |
500.0 °C | 175 GPa | |
600.0 °C | 164 GPa | |
Hardness, Brinell | 20.0 °C | 241 [-] |
Poisson's ratio | 20.0 °C | 0.28 [-] |
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 | 1.21E-5 1/K | ||
200.0 °C | 1.27E-5 1/K | ||
300.0 °C | 1.32E-5 1/K | ||
400.0 °C | 1.36E-5 1/K | ||
500.0 °C | 1.4E-5 1/K | ||
600.0 °C | 1.44E-5 1/K | ||
Max service temperature, long | -25 - 0 °C | ||
Melting point | 1382 - 1529 °C | Typical for Chromium Steel | |
Specific heat capacity | -100.0 °C | 423 J/(kg·K) | |
20.0 °C | 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 | 45.1 W/(m·K) | |
100.0 °C | 45.1 W/(m·K) | ||
200.0 °C | 44.1 W/(m·K) | ||
300.0 °C | 41.9 W/(m·K) | ||
400.0 °C | 39.4 W/(m·K) | ||
500.0 °C | 36.9 W/(m·K) | ||
600.0 °C | 34.4 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 12.5 mm²/s | |
100.0 °C | 11.6 mm²/s | ||
200.0 °C | 10.6 mm²/s | ||
300.0 °C | 9.5 mm²/s | ||
400.0 °C | 8.4 mm²/s | ||
500.0 °C | 7.1 mm²/s | ||
600.0 °C | 5.8 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 2.31E-7 Ω·m |
100.0 °C | 2.84E-7 Ω·m | |
200.0 °C | 3.58E-7 Ω·m | |
300.0 °C | 4.48E-7 Ω·m | |
400.0 °C | 5.52E-7 Ω·m | |
500.0 °C | 6.71E-7 Ω·m | |
600.0 °C | 8.06E-7 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.38 - 0.45 % |
Chromium | 0.9 - 1.2 % |
Manganese | 0.6 - 0.9 % |
Phosphorus | 0.04 % |
Silicon | 0.4 % |
Sulfur | 0.03 % |
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