DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N)
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) introduction
The steel is used for welded round link chains and chain components.
Equivalent material: DIN 1.0470, DIN 21 Mn 4 Al, DIN 21Mn4, EN 1.0470, GB/T ML20Mn, GB/T U41208
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 7.84 g/cm³ |
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) 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 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 46.5 W/(m·K) | - |
| - | 100.0 °C | Thermal conductivity of 47 - 47.2 W/(m·K) | - |
| - | 200.0 °C | Thermal conductivity of 45.9 - 46 W/(m·K) | - |
| - | 300.0 °C | Thermal conductivity of 43.5 - 44 W/(m·K) | - |
| - | 400.0 °C | Thermal conductivity of 40.9 - 41 W/(m·K) | - |
| - | 500.0 °C | Thermal conductivity of 38 - 38.1 W/(m·K) | - |
| - | 600.0 °C | Thermal conductivity of 35 - 35.3 W/(m·K) | - |
| Thermal diffusivity | 20.0 °C | Thermal diffusivity of 12.9 mm²/s | - |
| - | 100.0 °C | Thermal diffusivity of 12.2 mm²/s | - |
| - | 200.0 °C | Thermal diffusivity of 11.1 mm²/s | - |
| - | 300.0 °C | Thermal diffusivity of 9.9 mm²/s | - |
| - | 400.0 °C | Thermal diffusivity of 8.7 mm²/s | - |
| - | 500.0 °C | Thermal diffusivity of 7.3 mm²/s | - |
| - | 600.0 °C | Thermal diffusivity of 5.9 mm²/s | - |
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) 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 0.8 - 1.1 % |
| Phosphorus | Phosphorus of 0.04 % |
| Silicon | Silicon of 0.25 % |
| Sulfur | Sulfur of 0.035 % |
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) magnetic
| Property | Value | Comment |
|---|---|---|
| Curie temperature | Curie temperature of 770 °C | Typical for Low Carbon Steel |
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) electrical
| Property | Temperature | Value |
|---|---|---|
| Electrical resistivity | 20.0 °C | Electrical resistivity of 2.24E-7 Ω·m |
| - | 100.0 °C | Electrical resistivity of 2.7E-7 - 2.71E-7 Ω·m |
| - | 200.0 °C | Electrical resistivity of 3.4E-7 - 3.44E-7 Ω·m |
| - | 300.0 °C | Electrical resistivity of 4.3E-7 - 4.31E-7 Ω·m |
| - | 400.0 °C | Electrical resistivity of 5.3E-7 - 5.32E-7 Ω·m |
| - | 500.0 °C | Electrical resistivity of 6.5E-7 Ω·m |
| - | 600.0 °C | Electrical resistivity of 7.86E-7 - 7.9E-7 Ω·m |
DIN 17115 Grade 21Mn4Al normalized or normalized formed (+N) 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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