Zhejiang, China
Business Type:
Plant Area:
>2000 square meters
Management System Certification:
ISO 9001, ISO 14001
Main Markets:
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, ...
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workday
Sample Available

CuNi40, Copper Nickel Alloy, Cu-Ni Alloy manufacturer / supplier in China, offering Od 150mm CuNi40 Tube Cu-Ni Alloy 6j40 Pipe for Resistor, 6j13 Electric Resistance Alloy, Manganin Strip for Resistor, Manganin/ Cu-Mn Alloys/ CuNi30mn Wire and so on.

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Supplier Homepage Products Cupronickel Alloy Od 150mm CuNi40 Tube Cu-Ni Alloy 6j40 Pipe for Resistor

Od 150mm CuNi40 Tube Cu-Ni Alloy 6j40 Pipe for Resistor

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Purchase Qty. / Reference FOB Price
20-49 Kilograms US $94.2
50+ Kilograms US $94
Production Capacity: 500tons/Year
Transport Package: in Roll/Coil/Spool
Payment Terms: L/C, T/T, Paypal, Western Union
Product Type: Tube
Material: Ni,Cu
Carbon Content: Low Carbon
Condition: Bright
Density: 8.88 g/cm3
Operating Temperature Range: 5~500oc

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Basic Info

Model NO.: 6J40
Temperature Coefficient of Resistance: -40~+40 *10-6 /Oc
Emf Vs Cu(0~100 Oc): 45V/Oc
Resistivity (20oc): 0.48 ±0.03 Ohm*mm2/M
Elongation: Min15%
Cetification: ISO9001
Advantages: Fine After-Sale Services
Chemical Composition: Cu, Ni
Trademark: Ualloy
Specification: RoHS, SGS
Origin: Zhejiang, China
HS Code: 74082290

Product Description

Constantan is a copper-nickel alloy usually consisting of 55% copper and 45% nickel, also known as Eureka,
Advance and Ferry. Its main feature is its resistivity which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as manganin.
Its resistivity is high enough to achieve suitable resistance values in even very small grids, and its temperature
coefficient of resistance is not excessive. In addition, constantan is characterized by good fatigue life and relatively high elongation capability.
                    Chemical Content(%)











         Mechanical Properties 


8.88 g/cm3

Operating temperature range 


Temperature Coefficient of Resistance 

-40~+40 *10-6 /ºC 

EMF VS Cu(0~100 ºC)


Resistivity (20ºC)

0.48 ±0.03 ohm*mm2/m




2. Packing detail
   1). Coil (plastic spool) + compressed ply-wooden case + pallet 
   2). Coil (plastic spool) + carton + pallet  
3. Products and services
   1). Pass: ISO9001 certification, and SO14001cetification;
   2). Fine after-sale services;
   3). Small order accepted;
   4). Fast delivery;

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