Gold Member Since 2012
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Hangzhou Ualloy Material Co., Ltd.

Alloy 294, CuNi44, Cuprothal 294 manufacturer / supplier in China, offering Cuprothal 294 Alloy Plate CuNi44 Cupronickel Contantan Sheet, Type K Bright Thermocouple Bare Wire, High Temperature Electric Heating Resistance Wire and so on.

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Supplier Homepage Product Cupronickel Alloy Cuprothal 294 Alloy Plate CuNi44 Cupronickel Contantan Sheet

Cuprothal 294 Alloy Plate CuNi44 Cupronickel Contantan Sheet

Purchase Qty.:
(kilogram)
20-49 50+
FOB Unit Price: US $36 US $35.5
Purchase Qty. (kilogram) FOB Unit Price
20-49 US $36
50+ US $35.5
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
  • Resisivity at 20oc: 0.49
  • Thermal Conductivity: <-6
  • Emf Vs Cu: -43
  • Micrographic Structure: Austenite
  • Trademark: Ualloy
  • Origin: China
  • Product Type: Sheet
  • Carbon Content: Low Carbon
  • Max Continuous Service Temperatureoc): 400
  • Density(G/Cm³): 8.9
  • Tensile Strength(MPa): ≥420
  • Approximate Melting Point(Oc): 1280
  • Magnetic Property: Non
  • Specification: GB/T 6145-1999
  • HS Code: 74099000
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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