Cupro Nickel Alloy CuNi2 Foil for Thermal Overload Relay

Product Details
Customization: Available
Product Type: Foil
Material: CuNi
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Number of Employees
15
Year of Establishment
2012-02-06
  • Cupro Nickel Alloy CuNi2 Foil for Thermal Overload Relay
  • Cupro Nickel Alloy CuNi2 Foil for Thermal Overload Relay
  • Cupro Nickel Alloy CuNi2 Foil for Thermal Overload Relay
  • Cupro Nickel Alloy CuNi2 Foil for Thermal Overload Relay
  • Cupro Nickel Alloy CuNi2 Foil for Thermal Overload Relay
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Basic Info.

Model NO.
CuNi2
Carbon Content
Low Carbon
Thickness
0.01mm~3mm
Width
0.5mm~200mm
Status
Bright
Chemical Composition
CuNi
Max Continuous Service Temperature(Oc)
200
Density(G/Cm³)
8.9
Tensile Strength(MPa)
>= 220
Approximate Melting Point(Oc)
1090
Micrographic Structure
Austenite
Magnetic Property
Non
Transport Package
in Roll/Coil/Spool
Specification
GB/T 6145-1999
Trademark
Ualloy
Origin
China
HS Code
74082900
Production Capacity
50t/Month

Product Description

Copper Nickel Alloys

Model No.: CuNi2

Those are alloys of chemical composition copper + nickel with addition of manganese with a low resistivity (from 231.5 to 23.6 Ohm. Mm2/ft).

The most known, CuNi 44 (also called Constantan) presents the advantage of a very low temperature coefficient.

Their advantages are the following:

Very good resistance to corrosion
Very good malleability
Very good solderability
Chemical Composition and Main Property of Cu-Ni Low Resistance Alloy
Properties\Grade CuNi1 CuNi2 CuNi6 CuNi8 CuMn3 CuNi10
Main Chemical Composition Ni 1 2 6 8 _ 10
Mn _ _ _ _ 3 _
Cu Bal Bal Bal Bal Bal Bal
Max Continuous Service Temperature(ºC) 200 200 200 250 200 250
Resisivity at 20ºC  (μΩ·m) 0.03 0.05 0.1 0.12 0.12 0.15
Density(g/cm³) 8.9 8.9 8.9 8.9 8.8 8.9
Thermal Conductivity(α × 10-6ºC) < 100 < 120 < 60 < 57 < 38 < 50
Tensile Strength(Mpa) ≥ 210 ≥ 220 ≥ 250 ≥ 270 ≥ 290 ≥ 290
EMF vs Cu(μV/ºC)(0~1000ºC) -8 -12 -12 -22 _ -25
Approximate Melting Point(ºC) 1085 1090 1095 1097 1050 1100
Micrographic Structure austenite austenite austenite austenite austenite austenite
Magnetic Property non non non non non non
 
Properties\Grade CuNi14 CuNi19 CuNi23 CuNi30 CuNi34 CuNi44
Main Chemical Composition Ni 14 19 23 30 34 44
Mn 0.3 0.5 0.5 1 1 1
Cu Bal Bal Bal Bal Bal Bal
Max Continuous Service Temperature(ºC) 300 300 300 350 350 400
Resisivity at 20ºC  (μΩ·m) 0.2 0.25 0.3 0.35 0.4 0.49
Density(g/cm³) 8.9 8.9 8.9 8.9 8.9 8.9
Thermal Conductivity(α × 10-6ºC) < 30 < 25 < 16 < 10 < 0 < -6
Tensile Strength(Mpa) ≥ 310 ≥ 340 ≥ 350 ≥ 400 ≥ 400 ≥ 420
EMF vs Cu(μV/ºC)(0~1000ºC) -28 -32 -34 -37 -39 -43
Approximate Melting Point(ºC) 1115 1135 1150 1170 1180 1280
Micrographic Structure austenite austenite austenite austenite austenite austenite
Magnetic Property non non non non non non

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