Nickel-chromium, nickel, ferrochrome alloy wire with electric high temperature oxidation resistance, high strength, not soften and a series of advantages. When used in a long time, the same type and the permanent elongation is very small, which is more Cr20Ni80 alloy with excellent comprehensive properties, is to produce high-quality varieties of choice for electric components.

Performance\ material Cr10Ni90 Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni35 Cr20Ni30 Composition Ni 90 Rest Rest 55.0~61.0 34.0~37.0 30.0~34.0 Cr 10 20.0~23.0 28.0~31.0 15.0~18.0 18.0~21.0 18.0~21.0 Fe ≤1.0 ≤1.0 Rest Rest Rest Maximum temperature℃ 1300 1200 1250 1150 1100 1100 Meltiing point ℃ 1400 1400 1380 1390 1390 1390 Density g/cm3 8.7 8.4 8.1 8.2 7.9 7.9 Resistivity  at 20℃((μΩ·m) 1.09±0.05 1.18±0.05 1.12±0.05 1.00±0.05 1.04±0.05 Elongation at rupture ≥20 ≥20 ≥20 ≥20 ≥20 ≥20 Specific heat J/g.℃ 0.44 0.461 0.494 0.5 0.5 Thermal conductivity KJ/m.h℃ 60.3 45.2 45.2 43.8 43.8 Coefficient of lines expansion a×10-6/ (20~1000℃) 18 17 17 19 19 Micrographic structure Austenite Austenite Austenite Austenite Austenite Magnetic properties Non-magnetic Non-magnetic Non-magnetic Weak magnetic Weak magnetic

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