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Constantan Strip Copper Nickel Low Resistance Alloy Wire/Sheet/Coil CuNi44 /2.0842

Sep 03, 2016

Basic Info
  • Model NO.: CuNi44

  • Material: CuNi

  • PCD: 420

  • Hole: 0

  • standard: GB/ASTM/JIS/BIS/DIN

  • surface: Bright

  • Trademark: UALLOY

  • Specification: RoHS, SGS, ISO 9001: 2008

  • HS Code: 7408220000

  • Product Type: Strip

  • Carbon Content: Low Carbon

  • ET: 0

  • colour: silver white

  • Sample: Small Order Accepted

  • Density: 8.9(g/cm3)

  • Package: Waterproof Paper, Wooden Case

  • Origin: China

Product Description
Constanstan Strip/Constantan Sheet/Constantan Plate

Size Range: Thickness 0.005mm~3mm; Width 1mm~600mm

Chemical Content, %
NiMnFeSiCuOtherROHS Directive
Mechanical Properties
Max Continuous Service Temp400ºC
Resisivity at 20ºC0.49±5%ohm mm2/m
Density8.9 g/cm3
Thermal Conductivity-6(Max)
Melting Point1280ºC
Tensile Strength,N/mm2   Annealed,Soft340~535 Mpa
Tensile Strength,N/mm3   Cold Rolled680~1070 Mpa
Elongation(cold rolled)≥Min)2%(Min)
EMF vs Cu, μV/ºC (0~100ºC)-43
Micrographic Structure austenite
Magnetic PropertyNon
 main specifications and main technical parameter of resistance alloy constantan wire
main property    type NC003 Cuni1NC005 CuNI2NC010 CuNI6NC012 CuNi8NC015 CuNI10NC020 CuNi14NC025 CuNi19NC030 CuNi23NC035 CuNi30NC040 CuNi34NC050 CuNI44
main chemical compositionNi12681014.21923303444
max working temperature /200220250250300300300350350400
density g/cm3
resistivity at 20 °c 0.03±10%0.05±10%0.10±10%0.12±10%0.15±10%0.20±5%0.25±5%0.30±5%0.35±5%0.40±5%0.49±5%
temperature coefficient of resistance <100<120<60<57<50<38<25<16<10-0<-6
tensile strength mpa >210>220>250>270>290>310>340>350>400>400>420
elongation >25>25>25>25>25>25>25>25>25>25>25
melting point &#176;c 10851090109510971100111511351150117011801280
coefficient of conductivity 145130927559483833272523
Application of Constantan
Constantan is a copper-nickel alloy that contains specific minor amounts of additional
elements to achieve precise values for the temperature coefficient of resistivity. Careful
control of melting and conversion practices results in a very low level of pinholes at
ultra-thin thicknesses. The alloy is used extensively for foil resistors and strain gauges.