EN 10132-4 Grade 51CrV4 Quenched & Tempered Steel (QT) – High-Performance Cold-Rolled Strip
The steel 51CrV4 is used as cold rolled strip for springs and special applications in thicknesses of up to 6 mm and as tempered cold strip in thicknesses from 0.30 to 3.00 mm.
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 | |
Hardness, Rockwell C | 20.0 °C | 38.5 - 52.5 [-] |
Hardness, Vickers | 20.0 °C | 370 - 570 [-] |
Poisson's ratio | 20.0 °C | 0.29 [-] |
Tensile strength | 20.0 °C | 1200 - 1800 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 | ||
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 % |
Molybdenum | 0.1 % |
Nickel | 0.4 % |
Phosphorus | 0.03 % |
Silicon | 0.4 % |
Sulfur | 0.025 % |
Vanadium | 0.1 - 0.25 % |
Metal
- EN 10083-1 Grade 51CrV4: Quenched & Tempered Steel (QT)
- EN 10132-4 Grade 102Cr6 Quenched & Tempered Steel – High Strength, Low Temperature Performance
- EN 10132-4 Grade 80CrV2 Steel: Quenched & Tempered (QT) – High-Performance Spring Strip
- EN 10132-4 Grade C55S Quenched & Tempered Steel – Ideal for Springs & Cold-Rolled Strips
- EN 10132-4 Grade C60S – Premium Quenched & Tempered High‑Carbon Steel
- EN 10132-4 Grade C90S Quenched & Tempered Steel – High-Performance Spring Material
- EN 10132-4 Grade C100S: Quenched & Tempered Steel for Precision Springs and Cold‑Rolled Applications
- EN 10132‑4 Grade C85S Quenched & Tempered Steel – Premium Cold‑Rolled Strip for Springs & Thin Components
- EN 10132-4 Grade C125S Quenched & Tempered Steel – Precision Spring & Watch Industry Grade
- EN 10089 Grade 51CrV4 Quenched & Tempered Steel – Premium for High‑Temperature Springs