Project Description

CuNi2 (W.Nr. 2.0802) is a copper-nickel alloy (CuNi alloy) with low resistivity for use at temperatures up to 300℃.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
Cuprothal 5
MWS-30		CuNi2
(NC005)		–Alloy 30––2.0802––CN5W
CN5R		–

Chemical Composition, %

AlloyNiMnCu
CuNi220.3Bal

Typical Mechanical and Physical Properties

Resistivity, 20℃ μΩ·mMax.working Temperature, ℃Tensile Strength, MPaMelting Point, ℃Specific Heat, J/gkThermal Conductivity, 20℃ W/mkDensity, g/cm3TCR x10-6/ ℃, 20-600℃EMF vs Cu, μV/℃, 0-100 ℃
0.05±5%20022010900.381308.9<120-12

Features

  • Good resistance consistency
  • Superior stability

Applications

  • Low-voltage circuit breaker
  • Thermal overload relay
  • Heating cables
  • Fuses
  • Shunts
  • Resistors
  • Controllers