Ni30Cr20
Evanohm is a unique resistance alloy with high electrical resistivity and very low temperature coefficient of resistivity.
The alloy is produced by melting and conditioning practices which result in a low level of pinholes at ultra-thin thicknesses. This combination of attributes with inherent corrosion resistance makes it suitable for a variety of strain gauge and foil resistor applications.
Chemical composition
Cr % | Al % | Cu % | Si % | Mn % | Zr % | Ni % |
20.0 | 2.8 | 2.0 | 1.0 | 0.90 | 0.08 | Bal. |
Mechanical properties
Max. continuous operating temp. | 1250 |
Resistivity ( 20℃)/Ω·m | 1.18 +/-0.05 (Dia: <0.5mm) |
Density (g/cm3) | 8.1 |
Thermal Conductivity (KJ/m·h·℃) | 45.2 |
Melting Point (℃) | 1380 |
Elongation(%) | 10-20 |
Micrographic Structure | Austenite |
Magnetic Property | Nonmagnetic |
Temperature factor of electrical resistivity
20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
1 | 1.007 | 1.016 | 1.028 | 1.038 | 1.044 | 1.036 | 1.030 | 1.028 | 1.029 | 1.033 | 1.037 | 1.043 | - |
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