DIN 17745 Grade NiCr42-6 soft annealed (+A)
DIN 17745 Grade NiCr42-6 soft annealed (+A) introduction
The iron alloy with special thermal expansion NiCr42-6, material number 1.3946, is used for compounds of metal and glass, for example fusions with TV piston glas or flash bulbs. The break point temperature (temperature at which a break point in the expansion-temperature-curve occurs) is 265 degrees C. The material has extremely low thermal expansion at 350 degrees C. The cupping index at 1 mm thickness is 9.5 mm.
DIN 17745 Grade NiCr42-6 soft annealed (+A) general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 8.2 g/cm³ |
DIN 17745 Grade NiCr42-6 soft annealed (+A) thermal
| Property | Temperature | Value |
|---|---|---|
| Coefficient of thermal expansion | 100.0 °C | Coefficient of thermal expansion of 6.9E-6 1/K |
| - | 150.0 °C | Coefficient of thermal expansion of 7E-6 1/K |
| - | 200.0 °C | Coefficient of thermal expansion of 7.2E-6 1/K |
| - | 300.0 °C | Coefficient of thermal expansion of 8.3E-6 1/K |
| - | 400.0 °C | Coefficient of thermal expansion of 1.01E-5 1/K |
| - | 500.0 °C | Coefficient of thermal expansion of 1.14E-5 1/K |
| - | 600.0 °C | Coefficient of thermal expansion of 1.24E-5 1/K |
| Specific heat capacity | 20.0 °C | Specific heat capacity of 500 J/(kg·K) |
| Thermal conductivity | 20.0 °C | Thermal conductivity of 13 W/(m·K) |
DIN 17745 Grade NiCr42-6 soft annealed (+A) chemical
| Property | Value |
|---|---|
| Carbon | Carbon of 0.1 % |
| Chromium | Chromium of 6 - 7 % |
| Manganese | Manganese of 1 % |
| Nickel | Nickel of 41 - 43 % |
| Silicon | Silicon of 0.5 % |
DIN 17745 Grade NiCr42-6 soft annealed (+A) electrical
| Property | Temperature | Value |
|---|---|---|
| Electrical resistivity | 20.0 °C | Electrical resistivity of 9.5E-7 Ω·m |
DIN 17745 Grade NiCr42-6 soft annealed (+A) mechanical
| Property | Temperature | Value |
|---|---|---|
| Elastic modulus | 20.0 °C | Elastic modulus of 147 GPa |
| Elongation | 20.0 °C | Elongation of 30 % |
| Tensile strength | 20.0 °C | Tensile strength of 440 - 640 MPa |
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