Project Description

CuNi44 (NC050)

CuNi44 is a copper-nickel alloy (CuNi alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 600℃.

Equivalent Grades

TrademarksGBJISASTMUNSDINW-Nr.ГОСТBSNFSS
Cuprothal 49
MWS-294
Constantan		CuNi44
(NC050)		CN49W
CN49R		Alloy 294–––––––

Product Forms

Wire, Ribbon, Strip, Rod

Chemical Composition, %

AlloyNiMnCu
CuNi44441.0Bal

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 ℃
0.50±5%40042012000.41238.9<-6-43

Features

  • High resistance consistency
  • High ductility
  • Good corrosion resistance
  • Superior stability

Applications

  • Temperature-stable potentiometer
  • Industrial rheostat
  • Electric motor starter resistance
  • Precision resistors
  • Strain gauges