Project Description

CuNi23 (W.Nr. 2.0881) is a copper-nickel alloy (CuNi alloy) with medium resistivity suitable for use at temperatures up to 400℃.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
Cuprothal 30
MWS-180		CuNi23
(NC030)		–Alloy 180––2.0881––CN30W
CN30R		–

Chemical Composition, %

AlloyNiMnCu
CuNi23230.8Bal

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 ℃
0.30±5%30035011500.38338.9<16-34

Features

  • Good resistance consistency
  • Superior stability

Applications

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