DIN 17115 Grade 21Mn5 quenched and tempered (+QT)
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) introduction
The steel is used for welded round link chains and chain components.
Equivalent material: DIN 1.0495, EN 1.0495
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 7.82 - 7.83 g/cm³ |
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Coefficient of thermal expansion | -100.0 °C | Coefficient of thermal expansion of 1.08E-5 1/K | - |
| - | 20.0 °C | Coefficient of thermal expansion of 1.19E-5 1/K | - |
| - | 100.0 °C | Coefficient of thermal expansion of 1.22E-5 - 1.25E-5 1/K | - |
| - | 200.0 °C | Coefficient of thermal expansion of 1.29E-5 - 1.3E-5 1/K | - |
| - | 300.0 °C | Coefficient of thermal expansion of 1.34E-5 - 1.36E-5 1/K | - |
| - | 400.0 °C | Coefficient of thermal expansion of 1.4E-5 - 1.41E-5 1/K | - |
| - | 500.0 °C | Coefficient of thermal expansion of 1.43E-5 - 1.45E-5 1/K | - |
| - | 600.0 °C | Coefficient of thermal expansion of 1.46E-5 - 1.49E-5 1/K | - |
| Max service temperature | - | Max service temperature of 500 °C | Typical for Carbon Steel |
| Melting point | - | Melting point of 1480 - 1526 °C | Typical for Low Carbon Steel |
| Specific heat capacity | -100.0 °C | Specific heat capacity of 423 J/(kg·K) | - |
| - | 20.0 °C | Specific heat capacity of 430 - 461 J/(kg·K) | - |
| - | 100.0 °C | Specific heat capacity of 479 - 500 J/(kg·K) | - |
| - | 200.0 °C | Specific heat capacity of 499 - 540 J/(kg·K) | - |
| - | 300.0 °C | Specific heat capacity of 517 - 580 J/(kg·K) | - |
| - | 400.0 °C | Specific heat capacity of 536 - 620 J/(kg·K) | - |
| - | 500.0 °C | Specific heat capacity of 558 - 690 J/(kg·K) | - |
| - | 600.0 °C | Specific heat capacity of 587 - 780 J/(kg·K) | - |
| Thermal conductivity | 20.0 °C | Thermal conductivity of 39.7 - 40 W/(m·K) | - |
| - | 100.0 °C | Thermal conductivity of 41 - 41.3 W/(m·K) | - |
| - | 200.0 °C | Thermal conductivity of 41 - 41.5 W/(m·K) | - |
| - | 300.0 °C | Thermal conductivity of 40 - 40.4 W/(m·K) | - |
| - | 400.0 °C | Thermal conductivity of 38 - 38.7 W/(m·K) | - |
| - | 500.0 °C | Thermal conductivity of 36 - 36.6 W/(m·K) | - |
| - | 600.0 °C | Thermal conductivity of 34 - 34.3 W/(m·K) | - |
| Thermal diffusivity | 20.0 °C | Thermal diffusivity of 11 mm²/s | - |
| - | 100.0 °C | Thermal diffusivity of 10.7 mm²/s | - |
| - | 200.0 °C | Thermal diffusivity of 10 mm²/s | - |
| - | 300.0 °C | Thermal diffusivity of 9.2 mm²/s | - |
| - | 400.0 °C | Thermal diffusivity of 8.2 mm²/s | - |
| - | 500.0 °C | Thermal diffusivity of 7.1 mm²/s | - |
| - | 600.0 °C | Thermal diffusivity of 5.8 mm²/s | - |
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) chemical
| Property | Value |
|---|---|
| Aluminium | Aluminium of 0.02 - 0.05 % |
| Carbon | Carbon of 0.18 - 0.24 % |
| Copper | Copper of 0.25 % |
| Manganese | Manganese of 1.1 - 1.6 % |
| Phosphorus | Phosphorus of 0.03 - 0.04 % |
| Silicon | Silicon of 0.25 % |
| Sulfur | Sulfur of 0.025 - 0.035 % |
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) magnetic
| Property | Value | Comment |
|---|---|---|
| Curie temperature | Curie temperature of 770 °C | Typical for Low Carbon Steel |
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) electrical
| Property | Temperature | Value |
|---|---|---|
| Electrical resistivity | 20.0 °C | Electrical resistivity of 2.6E-7 - 2.62E-7 Ω·m |
| - | 100.0 °C | Electrical resistivity of 3.1E-7 Ω·m |
| - | 200.0 °C | Electrical resistivity of 3.8E-7 Ω·m |
| - | 300.0 °C | Electrical resistivity of 4.64E-7 - 4.7E-7 Ω·m |
| - | 400.0 °C | Electrical resistivity of 5.62E-7 - 5.7E-7 Ω·m |
| - | 500.0 °C | Electrical resistivity of 6.76E-7 - 6.9E-7 Ω·m |
| - | 600.0 °C | Electrical resistivity of 8.07E-7 - 8.2E-7 Ω·m |
DIN 17115 Grade 21Mn5 quenched and tempered (+QT) mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Elastic modulus | -100.0 °C | Elastic modulus of 217 GPa | - |
| - | 20.0 °C | Elastic modulus of 212 GPa | - |
| - | 100.0 °C | Elastic modulus of 207 - 208 GPa | - |
| - | 200.0 °C | Elastic modulus of 199 - 201 GPa | - |
| - | 300.0 °C | Elastic modulus of 192 - 193 GPa | - |
| - | 400.0 °C | Elastic modulus of 184 - 185 GPa | - |
| - | 500.0 °C | Elastic modulus of 175 GPa | - |
| - | 600.0 °C | Elastic modulus of 164 GPa | - |
| Poisson's ratio | 23.0 °C | Poisson's ratio of 0.29 [-] | Typical for Low Carbon Steel |
| Shear modulus | 23.0 °C | Shear modulus of 82 GPa | Typical for Low Carbon Steel |
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