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Cr20Ni35

 

Product Description

Cr20Ni35 ,Electric wire ,resistance heating wire
Nichrome is an ideal material, it has good ductility,workability and weldability under high temperature and seismic strength.
Nickel-chromium alloy with high and stable resistance, corrosion resistance, surface oxidation resistance, excellent coil-forming ability.


Size dimension range:
Wire: 0.01-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
NiCr series: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30

 

Alloy Nomenclature Performance Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni35 Cr20Ni30
Main Chemical composition Ni Rest Rest 55.0-61.0 34.0-37.0 30.0-34.0
Cr 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
Max. continuous service temp. of element(ºC) 1200 1250 1150 1100 1100
Meltiing point 1400 1380 1390 1390 1390
Resistivity at 20ºC (̦m) 1.090.05 1.180.05 1.120.05 1.000.05 1.040.05
Density(g/cm3) 8.4 8.1 8.2 7.9 7.9
Thermal conductivity (KJ/mhºC) 60.3 45.2 45.2 43.8 43.8
Coefficient of lines expansion(10-6/ºC) 18 17 17 19 19
Melting point approx.( ºC) 1400 1380 1390 1390 1390
Elongation at rupture(%) >20 >20 >20 >20 >20
Micrographic structure Austenite Austenite Austenite Austenite Austenite
Magnetic properties Nonmagnetic Nonmagnetic Nonmagnetic Weak magnetic Weak magnetic

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