Ultra Thin Nickel Chromium Alloy Wire Microfilament For Wire Wound
Resistor
Nickel-chromium alloy with high and stable resistance, corrosion
resistance, surface oxidation resistance, excellent coil- forming ability.it is an ideal material,it has good ductility,workability and weldability under high temperature and seismic strength.
1. Performance: High resistivity, good oxidation resistance, very
good form stability, good ductility and excellent weldability.
2. Application: It is widely used in electric heating element
material in domestic appliances. And the typical applications are
metal sheathed tubular elements used in, for example, hot plates,
grills, toaster ovens and storage heaters. The alloys is also used
for suspended coils in air heaters in clothes dryers, fan heaters,
hand dryers.
Application of all grades:
Cr20Ni80:in braking resistors,industrial furnaces,flat irons,
ironing machines, water heaters, plastic moulding dies, soldering
irons, metal sheathed tubular elements and cartridge elements.
Cr30Ni70:in industrial furnaces. well suited for reducing
atmospheres, as it is not subject to 'green rot'.
Cr15Ni60:in braking resistors,industrial furnaces,hot plates,
grills, toaster ovens and storage heaters. For suspended coils in
air heaters in clothes dryers, fan heaters, hand dryers.
Cr20Ni35:in braking resistors,industrial furnaces.In night-storage
heaters, convection heaters, heavy duty rheostats and fan heaters.
For heating cables and rope heaters in defrosting and de-icing
elements, electric blankets and pads, car seats, baseboard heaters
and floorheater.
Cr20Ni30:in solid hot plates, open coil heaters in HVAC systems,
night-storage heaters, convection heaters, heavy duty rheostats and
fan heaters.For heating cables and rope heaters in defrosting and
de-icing elements, electric blankets and pads, car seats, baseboard
heaters, floor heaters and resistors.
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 |
NiCr series: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30.
Ribbons: 0.05*0.2-2.0*6.0mm
Wire: 0.01-10mm
Strip: 0.05*5.0-5.0*250mm
Bar:10-50m
Typical Mechanical properties(1.0mm)
Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 420 | 810 | 30 |
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 | - |
