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Hangzhou Ualloy Material Co., Ltd.

CuNi Alloy Flat Wire, CuNi44, Cupronickel manufacturer / supplier in China, offering CuNi Alloy CuNi44 Cupronickel Contantan Flat Wire, Dia 0.091mm Nicr2080 Heating Wire, Bright Fecral Cr25al5 Heating Wire for Spring and so on.

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Supplier Homepage Product Cupronickel Alloy CuNi Alloy CuNi44 Cupronickel Contantan Flat Wire

CuNi Alloy CuNi44 Cupronickel Contantan Flat Wire

FOB Price: US $36 / Piece
Min. Order: 20 kilogram
Min. Order FOB Price
20 kilogram US $36/ Piece
Get Latest Price
Production Capacity: 50t/Month
Transport Package: in Roll, Wooden Case Outside
Payment Terms: L/C, T/T, Paypal, Western Union
Basic Info
  • Model NO.: CuNi44
  • Material: CuNi
  • Status: Bright
  • Specification: GB/T 6145-1999
  • HS Code: 7409900000
  • Product Type: Flat Wire
  • Carbon Content: Low Carbon
  • Trademark: Ualloy
  • Origin: China
Product Description
Copper Nickel Alloys(Cupro-nickel)

Principally destined for the manufacturing of low temperatures electric resistances so as heating cables, shunts, resistances for automobile, they have a maximum operating temperature of 752 degrees Fahrenheit.
They do not therefore intervene in the field of resistances for industrial furnaces.

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\GradeCuNi1CuNi2CuNi6CuNi8CuMn3CuNi10
Main Chemical CompositionNi1268_10
Mn____3_
CuBalBalBalBalBalBal
Max Continuous Service Temperature(ºC)200200200250200250
Resisivity at 20ºC (Ω*mm²/m)0.030.050.10.120.120.15
Density(g/cm³)8.98.98.98.98.88.9
Thermal Conductivity(α×10-6ºC)<100<120<60<57<38<50
Tensile Strength(Mpa)≥210≥220≥250≥270≥290≥290
EMF vs Cu(μVºC)(0~1000ºC)-8-12-12-22_-25
Approximate Melting Point(ºC)108510901095109710501100
Micrographic Structureausteniteausteniteausteniteausteniteausteniteaustenite
Magnetic Propertynonnonnonnonnonnon

Properties\GradeCuNi14CuNi19CuNi23CuNi30CuNi34CuNi44
Main Chemical CompositionNi141923303444
Mn0.30.50.5111
CuBalBalBalBalBalBal
Max Continuous Service TemperatureºC)300300300350350400
Resisivity at 20ºC (Ω*mm²/m)0.20.250.30.350.40.49
Density(g/cm³)8.98.98.98.98.98.9
Thermal Conductivity(α×10-6ºC)<30<25<16<10<0<-6
Tensile Strength(Mpa)≥310≥340≥350≥400≥400≥420
EMF vs Cu(μVºC)(0~1000ºC)-28-32-34-37-39-43
Approximate Melting Point(ºC)111511351150117011801280
Micrographic Structureausteniteausteniteausteniteausteniteausteniteaustenite
Magnetic Propertynonnonnonnonnonnon
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