Ni80Cr20
Ni80Cr20 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance and very good form stability. It is suitable for use at temperatures up to 1200°C and hold a superior service life compared to Iron chromium aluminum alloys.
Normal composition
C % | P % | S % | Mn % | Si % | Cr % | Ni % | Al % | Fe % | Other % |
Max | |||||||||
0.03 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 20.0~23.0 | Bal. | Max 0.50 | Max 1.0 | - |
Typical mechanical properties(1.0mm)
Yield strength（Mpa） | Tensile Strength（Mpa） | Elongation（Mpa%） |
420 | 810 | 30 |
Typical physical properties
Density (g/cm3) | 8.4 |
Electrical resistivity at 20℃(Ωmm2/m) | 1.09 |
Conductivity coefficient at 20℃ (WmK) | 15 |
Coefficient of thermal expansion
Temperature | Thermal Expansion x10-6/K |
20 ℃- 1000℃ | 18 |
Specific heat capacity
Temperature | 20℃ |
J/gK | 0.46 |
Melting point (℃) | 1400 |
Max continuous operating temperature in air (℃) | 1200 |
Magnetic properties | non-magnetic |
Temperature factors of electrical resistivity
20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 600℃ |
1 | 1.006 | 1.012 | 1.018 | 1.025 | 1.018 |
700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1300℃ |
1.01 | 1.008 | 1.01 | 1.014 | 1.021 | - |
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