• Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats
  • Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats
  • Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats
  • Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats

Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats

Product Type: Wire
Material: CuNi
Name: Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod
Material Type: CuNi44
Resistivity: 0.49(at 20c (Ohmmm2/M))
Application: Heating Wire
Samples:
US$ 50/kg 1 kg(Min.Order)
| Request Sample
Customization:

Contact Supplier

Gold Member Since 2012

Suppliers with verified business licenses

Manufacturer/Factory, Trading Company

Basic Info.

Model NO.
SP-CuNi44
Warrenty
3 Years
Transport Package
Spool+Paper Carton
Specification
0.03-8mm
Trademark
Ohmalloy/OEM
Origin
China
HS Code
7408290000
Production Capacity
30 Tons Per Month

Product Description

Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats

Constantan( Ohmalloy 049)

(Common Name: CuNi44,.Cuprothal49, Alloy 294, Cuprothal 294, Alloy 49, CuNi 102, Cu-Ni 44, Konstantan, Constantan.)

OhmAlloy049 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C

Typical applications for OhmAlloy49 are temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.

Copper Nickel Alloy Production Standard(GB/T1234-95)

Performance Brand NC020
CuNi14
NC025
CuNi19
NC030
CuNi23
NC035
CuNi30
NC040
CuNi34
NC050
CuNi44
Main Chemical Content% Ni 14.2 19 23 30 34 44
Mn 0.3 0.5 0.5 1.0 1.0 1.0
Cu Bal. Bal. Bal. Bal. Bal. Bal.
Element Max Working TemperatureºC 300 300 300 350 350 400
Density g/cm3 8.9 8.9 8.9 8.9 8.9 8.9
Resistivity Ωmm2/m, at 20ºC 0.20±5% 0.25±5% 0.30±5% 0.35±5% 0.40±5% 0.49±5%

Temperature factor of resistivity

10-5/ºC(200-600ºC)
<38 <25 <16 <10 -0 <-6
Melting Point ºC 1115 1135 1150 1170 1180 1280
Tensile Strength MPa ≥310 ≥340 ≥350 ≥400 ≥400 ≥420
Enlogation%(>1.0) ≥25 ≥25 ≥25 ≥25 ≥25 ≥25
EMF VS Copper
V/ºC(0-100ºC)
-28 -32 -34 -37 -39 -43
Specific heat capacity j/gk(20ºC) 0.38 0.38 0.38 0.39 0.40 0.41
Conductivity coefficient w/mk at20ºC 48 38 33 27 25 23
Organizational attribute Austenitic Austenitic Austenitic Austenitic Austenitic Austenitic
Magnetic None-Magnetic None-Magnetic None-Magnetic None-Magnetic None-Magnetic None-Magnetic

Corrosion resistance performance

Alloys Working In atmosphere at 20ºC Working at max temperature 200ºC  

Air and oxygen contain

gases

gases with Nitrogen

gases with sulfur

oxidability

gases with sulfur

reductibility

carburization
OhmAlloy049 good good good good bad good

Style of supply

Alloys Name Type Dimension  
OhmAlloy049W Wire D=0.06mm~8mm  
OhmAlloy049R Ribbon W=0.4~40 T=0.05~2.9mm
OhmAlloy049S Strip W=8~200mm T=0.1~3.0
OhmAlloy049F Foil W=6~120mm T=0.005~0.1
OhmAlloy049B Bar Dia=8~100mm L=50~1000

The addition of nickel to pure copper can significantly improve the strength, corrosion resistance, hardness, electrical resistance and thermoelectricity, and reduce the temperature coefficient of resistivity. Therefore, compared with other copper alloys, the mechanical and physical properties of cupronickel are extremely good, with good ductility, high hardness, beautiful color, corrosion resistance and deep drawing performance.


It is widely used as corrosion-resistant structural parts in shipbuilding, petroleum, chemical, construction, electric power, precision instruments, medical equipment, musical instruments and other departments. Some cupronickel has special electrical properties, which can be used to make resistance elements, thermocouple materials and compensation wires. Non-industrial cupronickel is mainly used to make decorative crafts.


 Copper Nickel Alloy Wire Application 

Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial RheostatsConstantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats
Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy for Industrial Rheostats

Send your message to this supplier

*From:
*To:
avatar Mr. Qiu
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now