Resistance Heating Wire, Brand Name : Heanjia

We offer resistance heating wire.
The resistance heating wire offers large electric resistance that increases significantly if temperature increases since it has large temperature coefficient of electric resistivity. The common applications of resistance heating wire include manufacturing powerful electric resistors and heating apparatus. The main purpose of resistance wire is to generate enormous heat when it is heated enormously.
the resistance heating wire is a hard, dense material. It causes superior resistant to oxidation and many corrosive conditions at the high temperatures. It creates protective layer when heated at the high scale. The wire also introduces high performance temperature limit, prolonged service life and large stress capability.
wire specification
wire diameter 0.05mm to 10.0 mm
physical properties of resistance heating wire:
grade cr20ni80 cr30ni70 cr15ni60 cr20ni35 cr20ni30
major chemical composition % ni balance balance 55.061.0 34.037.0 30.034.0
cr 20.023.0 28.031.0 15.018.0 18.021.0 18.021.0
fe =1.0 =1.0 balance balance balance
components maximum use temperature 1200 1250 1150 1100 1100
melting point 1400 1380 1390 1390 1390
density gcm3 8.40 8.10 8.20 7.90 7.90
resistivity,20 1.09-0.05 1.18-0.05 1.11-0.05 1.04-0.05 1.04-0.05
extension rate% =20 =20 =20 =20 =20
specific heat jg. 0.440 0.461 0.494 0.500 0.500
heat conduction coefficient kjm.h 60.3 45.2 45.2 43.8 43.8
linear expansion coefficient 18.0 17.0 17.0 19.0 19.0
applications of resistance heating wire
1. Electric oven and toaster
2. Powerful resistor
3. Electric heater and commercial furnaces
4. Wires, lead wire in lamps, electronic tubes and filaments