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 1200C,and hold a superior service life compared to Iron chromium alumium alloys.
Typical applications are electric heating elements in home appliances,industrial furnaces and resistors(wirewound resistors,metal film resistors), flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.
Normal Composition(%)
C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
Max |
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0.03 | 0.02 | 0.015 | 0.6 | 0.75-1.6 | 20.0-23.0 | Bal. | Max 0.50 | Max 1.0 | - |
Temperature Factors Of Electrical Resistivity
20 degrees | 100 degrees | 200 degrees | 300 degrees | 400 degrees | 600 degrees |
1 | 1.006 | 1.012 | 1.018 | 1.025 | 1.018 |
700 degrees | 800 degrees | 900 degrees | 1000 degrees | 1100 degrees | 1300 degrees |
1.01 | 1.008 | 1.01 | 1.014 | 1.021 | - |
Product Features
| Elongation (%) | Density (g/cm3) | Electrical resistivity at 20 degrees C ( mm2/m) | Conductivity coefficient at 20 degrees C (WmK) | Coefficient of Thermal Expansion x10-6/degrees | Melting point (degrees C) | Max continuous operating temperature in air (degrees C) |
Ni80Cr20 | 30 | 8.4 | 1.09 | 15 | 18 | 1400 | 1200 |
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