DIN 21544 Grade 31Mn4
DIN 21544 Grade 31Mn4 introduction
Steel for use in mine support work
Equivalent material: DIN 1.0520, EN 1.0520
DIN 21544 Grade 31Mn4 general
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Density | 23.0 °C | Density of 7.8 - 7.9 g/cm³ | Typical for Medium Carbon Steel |
DIN 21544 Grade 31Mn4 thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Coefficient of thermal expansion | 23.0 °C | Coefficient of thermal expansion of 1.32E-5 1/K | Typical for Medium Carbon Steel |
| Max service temperature | - | Max service temperature of 500 °C | Typical for Carbon Steel |
| Melting point | - | Melting point of 1380 - 1514 °C | Typical for Medium Carbon Steel |
| Specific heat capacity | 23.0 °C | Specific heat capacity of 470 - 520 J/(kg·K) | Typical for Medium Carbon Steel |
| Thermal conductivity | 23.0 °C | Thermal conductivity of 21 - 52 W/(m·K) | Typical for Medium Carbon Steel |
DIN 21544 Grade 31Mn4 chemical
| Property | Value |
|---|---|
| Aluminium | Aluminium of 0.02 % |
| Carbon | Carbon of 0.28 - 0.36 % |
| Copper | Copper of 0.04 % |
| Manganese | Manganese of 0.8 - 1.1 % |
| Phosphorus | Phosphorus of 0.04 % |
| Silicon | Silicon of 0.2 - 0.5 % |
| Sulfur | Sulfur of 0.035 % |
DIN 21544 Grade 31Mn4 electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Electrical resistivity | 23.0 °C | Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m | Typical for Carbon Steel |
DIN 21544 Grade 31Mn4 mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Elastic modulus | 23.0 °C | Elastic modulus of 200 - 215 GPa | Typical for Medium Carbon Steel |
| Poisson's ratio | 23.0 °C | Poisson's ratio of 0.29 [-] | Typical for Medium Carbon Steel |
| Shear modulus | 23.0 °C | Shear modulus of 75 - 80 GPa | Typical for Carbon Steel |
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