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Nickel-chrome & Nickel-chrome-Iron alloy wire
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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