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Nickel-chrome & Nickel-chrome-Iron alloy wire

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Nickel chromium and nickel chromium iron alloy is the most widely used high resistance alloys for electrical heating, the alloy has higher resistivity, good oxidation resistance and wear resistance, good mechanical properties and welding performance, under high temperature and high strength. The alloy is suitable for metallurgy, chemical industry, machinery, glass, ceramics and household electrical appliances and other industrial sectors, such as the production of heating elements, various types of motor voltage regulator and brake resistor.

Chemical composition(Standard: GB/T1234-1995)

 

Name Code Less than Si Cr Ni AL Fe
C P S Mn
Nickel-Chrome Cr20 Ni80
(6J20)
0.08 0.02 0.015 0.60 0.75~1.60 20.0~23.0 Rest ≤0.50 ≤1.0
Nickel-Chrome-Iron Cr15 Ni60 0.08 0.02 0.015 0.60 0.75~1.60 15.0~18.0 55.0~61.0 ≤0.50 Rest
Cr20 Ni30 0.08 0.02 0.015 1.00 1.00~2.00 18.0~21.0 30.0~34.0 - Rest

 

Name Code Resistivity Temp.Coeffi. Of Resistance(μΩ.m) Melting point ℃ Linear expansion coefficient Max. Working Temp.℃
Long-term Short-term
Nickel-Chrome Cr20 Ni80
(6J20)
1.09 ± 0.05 85 1400 14 ≤1000 1100
Nickel-Chrome-Iron Cr15 Ni60 1.10±0.05 140 1390 17 ≤950 1000
Cr20 Ni30 1.05±0.05 280 1390 19 ≤950 1000

 

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