EN 10089 Grade 61SiCr7 Steel – Quenched & Tempered for High-Performance Springs
The steel 61SiCr7 is used for formed springs, like leaf springs from 7 mm thickness for the vehicle construction as well as for leaf and diaphragm springs (also for the mechanical engineering).
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.83 - 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | -100.0 °C | 217 GPa |
20.0 °C | 210 - 212 GPa | |
100.0 °C | 206 - 207 GPa | |
200.0 °C | 199 - 200 GPa | |
300.0 °C | 192 - 193 GPa | |
400.0 °C | 184 GPa | |
500.0 °C | 175 GPa | |
600.0 °C | 164 GPa | |
Elongation | 20.0 °C | 5.5 % |
Poisson's ratio | 20.0 °C | 0.28 [-] |
Reduction of area | 20.0 °C | 20 % |
Shear modulus | 20.0 °C | 80 GPa |
Tensile strength | 20.0 °C | 1550 - 1850 MPa |
Yield strength Rp0.2 | 20.0 °C | 1400 MPa |
Thermal
| Property | Temperature | Value |
|---|---|---|
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 | |
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 | 0.57 - 0.65 % |
Chromium | 0.2 - 0.45 % |
Manganese | 0.7 - 1 % |
Phosphorus | 0.03 % |
Silicon | 1.6 - 2 % |
Sulfur | 0.025 % |
Technological properties
| Property | ||
|---|---|---|
| Features | Spring | |
Metal
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