NiCr 80/20 nichrome resistance wire
Ni80cr20 is a nickel chromium alloy (NiCr alloy), which has high resistivity, good oxidation resistance and very good shape stability.
Compared with Fe Cr Al alloy, it is suitable for use at temperatures up to 1200 ° C and has a longer service life.
The typical applications of ni80cr20 are household appliances, industrial furnaces and resistors (wire wound resistors, metal film resistors), flat iron, ironing machine, water heater, plastic molding die, soldering iron, metal casing piece and electric heating elements in box elements.
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 | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 420 | 810 | 30 |
Typical Physical properties
Density (g/cm3) | 8.4 |
| Electrical resistivity at 20ºC(mm2/m) | 1.09 |
| Conductivity coefficient at 20ºC (WmK) | 15 |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/ºC |
| 20 ºC- 1000ºC | 18 |
| Specific heat capacity | |
| Temperature | 20ºC |
| J/gK | 0.46 |
| Melting point (ºC) | 1400 |
| Max continuous operating temperature in air (ºC) | 1200 |
| Magnetic properties | non-magnetic |
| Temperature Factors Of Electrical Resistivity | |||||
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 600ºC |
| 1 | 1.006 | 1.012 | 1.018 | 1.025 | 1.018 |
| 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1300ºC |
| 1.01 | 1.008 | 1.01 | 1.014 | 1.021 | - |
Style of supply
| Alloys Name | Type | Dimension | ||
| Ni80Cr20W | Wire | D=0.03mm~8mm | ||
| Ni80Cr20R | Ribbon | W=0.4~40 | T=0.03~2.9mm | |
| Ni80Cr20S | Strip | W=8~250mm | T=0.1~3.0 | |
| Ni80Cr20F | Foil | W=6~120mm | T=0.003~0.1 | |
| Ni80Cr20B | Bar | Dia=8~100mm | L=50~1000 | |
