EN 10277‑5 Grade 50CrV4: Premium Cold‑Drawn, Quenched & Tempered Steel for High‑Load, High‑Wear Applications
Steel 50 CrV 4 is suitable for high loaded parts that have to meet increased tempering and high wear resistance requirements at best core qualities in aircraft and vehicle construction and engine and machine engineering (e.g. transmission and joint parts, axles). Furthermore application to spring and tool steel. 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 - 212.6 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 | |
Elongation | 20.0 °C | 9 - 12 % |
Poisson's ratio | 20.0 °C | 0.29 [-] |
Reduction of area | 20.0 °C | 40 - 50 % |
Tensile strength | 20.0 °C | 900 - 1300 MPa |
Yield strength | 20.0 °C | 700 - 900 MPa |
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 Vanadium 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 | 0.47 - 0.55 % |
Chromium | 0.9 - 1.2 % |
Manganese | 0.7 - 1.1 % |
Phosphorus | 0.04 % |
Silicon | 0.4 % |
Sulfur | 0.03 % |
Vanadium | 0.1 - 0.2 % |
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