DIN 17223-1 Grade D Patented Cold‑Drawn Steel Wire – Premium for High‑Load Springs
The patented cold drawn steel wire type D made of unalloyed steel is used for tension springs and compression springs for high static load and medium dynamic load as well as for torsion springs and other springs with high static load and high dynamic load.
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 7.8 - 7.9 g/cm³ | Typical for High Carbon Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 206 GPa | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for High Carbon Steel |
Reduction of area | 20.0 °C | 30 - 40 % | |
Shear modulus | 20.0 °C | 81.5 GPa | |
Tensile strength | 20.0 °C | 1160 - 3100 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.32E-5 1/K | Typical for High Carbon Steel |
Max service temperature | 500 °C | Typical for Carbon Steel | |
Max service temperature, long | -15 - 80 °C | ||
Melting point | 1289 - 1478 °C | Typical for High Carbon Steel | |
Specific heat capacity | 23.0 °C | 486 J/(kg·K) | Typical for High Carbon Steel |
Thermal conductivity | 23.0 °C | 36 W/(m·K) | Typical for High Carbon Steel |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 1.43E-7 - 1.74E-7 Ω·m | Typical for Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.7 - 1 % |
Copper | 0.12 % |
Manganese | 0.3 - 1.5 % |
Phosphorus | 0.03 % |
Silicon | 0.35 % |
Sulfur | 0.03 % |
Technological properties
| Property | ||
|---|---|---|
| Features | Spring | |
Metal
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