Nickel Chromium Heat Resistance Alloy Electrical Wire 2080/3070

• Product Type: Wire
• Material: Nickel Chromium
• Transport Package: Carton or Wooden Case
• Origin: Jiangyin, China

Product Description

Nickel Chromium heat resistance alloy electrical wire 2080/3070

The Nickel-Chrome wires is widely used as the high resistance alloy for electrical heating and wire-wound resistors in metallurgical industry,chemical industry and electrical industry, etc.   
This alloy wire has higher electrical resistance coefficient, good anti-oxidation and anti-corrosion performance, and it also has good mechanical workability and weldability, with a high strength at high temperature.

Main characteristics of Ni-Cr and Ni-Cr-Fe electric heating alloys

	Type	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni80	Cr20Ni30	Cr25Ni20
Performance
Main Chemical composition	Ni	Rest	55.0-61.0	34.0-37.0	Rest	30.0-30.4	19.0-22.0
	Cr	28.0-31.0	15.0-18.0	18.0-21.0	20.0-23.0	18.0-21.0	24.0-26.0
	Fe	≤ 1.0	Rest	Rest	≤ 1.0	Rest	Rest
Max. continuous service temp. of element		1250	1150	1100	1200	1100	1050
Resistivity at 20ºC ( μΩ m)		1.18±0.05	1.12±0.05	1.04±0.05	1.09±0.05	1.06±0.05	0.95±0.05
Density(g/cm³)		8.10	8.20	7.90	8.40	7.90	7.15
Thermal conductivity (KJ/m h ºC)		45.2	45.2	43.5	60.3	43.8	43.8
Coefficient of lines expansion(αx10-6/ºC )		17.0	17.0	19.0	18.0	19.0	19.0
Melting point(αpprox.) (ºC )		1380	1390	1390	1400	1390	1400
Elongation at rupture(%)		> 20	> 20	> 20	> 20	> 20	> 20
Micrographic structure		austenite	austenite	austenite	austenite	austenite	austenite
Magnetic properties		nonmagnetic	Low-magnetic	Low-magnetic	nonmagnetic	Low-magnetic	nonmagnetic

Note:The various grades of electric resistance alloy material are blended with the amount of rare earth, titanium and other trace elements, to improve the processing performance and extend the period of the uselife.