DIN 17205 Grade GS‑30Mn5: Air‑Quenched & Tempered Steel for High‑Performance Applications
The material GS-30 Mn 5 is applicable up to 300 degrees C. The use is performed in the construction of cranes and conveyor systems, in the vehicle and gear manufacturing as well as in the general mechanical engineering, e.g. for impellers, ball races, bearing rollers, drive tumblers, cog wheels, toothed rims.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 211 GPa | |
100.0 °C | 204 GPa | ||
200.0 °C | 196 GPa | ||
300.0 °C | 186 GPa | ||
Elongation | 20.0 °C | 18 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Medium Carbon Steel |
Shear modulus | 23.0 °C | 75 - 80 GPa | Typical for Carbon Steel |
Tensile strength | 20.0 °C | 520 - 670 MPa | |
Yield strength Rp0.2 | 20.0 °C | 260 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.1E-5 1/K | |
200.0 °C | 1.2E-5 1/K | ||
300.0 °C | 1.3E-5 1/K | ||
Max service temperature | 500 °C | Typical for Carbon Steel | |
Max service temperature, long | 0 - 300 °C | ||
Melting point | 1380 - 1514 °C | Typical for Medium Carbon Steel | |
Specific heat capacity | 23.0 °C | 470 - 520 J/(kg·K) | Typical for Medium Carbon Steel |
Thermal conductivity | 23.0 °C | 21 - 52 W/(m·K) | Typical for Medium 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 | 0.27 - 0.34 % |
Manganese | 1.2 - 1.5 % |
Phosphorus | 0.02 % |
Silicon | 0.6 % |
Sulfur | 0.015 % |
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