DIN 1651 Grade 35SPb20 Cold Drawn Steel – High Machinability & Reliability
The fully killed machining steel 35 SPb 20 is used for mass parts of mean strength, especially for lower toughness demands cross-sectional. Its better machinable because of the Pb addition. Application in the automotive engineering, toolbuilding, apparatus engineering (screws, nuts, smal parts).
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 210 GPa | |
200.0 °C | 193 GPa | ||
300.0 °C | 185 GPa | ||
400.0 °C | 175 GPa | ||
Elongation | 20.0 °C | 6 - 10 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Medium Carbon Steel |
Shear modulus | 20.0 °C | 81 GPa | |
Tensile strength | 20.0 °C | 480 - 880 MPa | |
Yield strength | 20.0 °C | 255 - 480 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.1E-5 1/K | |
200.0 °C | 1.18E-5 1/K | ||
400.0 °C | 1.32E-5 1/K | ||
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1380 - 1514 °C | Typical for Medium Carbon Steel | |
Specific heat capacity | 20.0 °C | 420 J/(kg·K) | |
100.0 °C | 490 J/(kg·K) | ||
200.0 °C | 530 J/(kg·K) | ||
400.0 °C | 610 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 49 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.2E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.32 - 0.39 % |
Lead | 0.15 - 0.35 % |
Manganese | 0.7 - 1.1 % |
Phosphorus | 0.06 % |
Silicon | 0.1 - 0.3 % |
Sulfur | 0.18 - 0.25 % |
Metal
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