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Constantan Flat Wire Cuprothal49 CuNi44 Copper Based Alloys

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Constantan Flat Wire Cuprothal49 CuNi44 Copper Based Alloys

Brand Name : OHMALLOY

Model Number : SP-CuNi44

Certification : ISO9001:2015

Place of Origin : China

MOQ : 5KG

Payment Terms : L/C, T/T, Western Union, Paypal

Supply Ability : 30000 KG per month

Delivery Time : 3-18 working days after payment confirmed

Packaging Details : Spool+paper case + wooden case/plastic packing+papre case+ wooden box outside(or customized)

Name : Constantan Cuprothal49 CuNi44 Flat Wire Strip Rod Cooper Nickel Alloy

Material Type : CuNi44Mn1(NC050)

Resistivity : 0.49(at 20℃ (Ωmm2/m))

Magnetic properties : Non-magnetic

Density (g/cm3) : 8.9

Conductivity coefficient at 20℃ : 23WmK

Supply State : Wire /Strip/ Rod/foil

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


Constantan(OhmAlloy049.pdf)


(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 ContentNi14.21923303444
Mn0.30.50.51.01.01.0
CuBal.Bal.Bal.Bal.Bal.Bal.
Element Max Working Temperature℃300300300350350400
Density g/cm38.98.98.98.98.98.9
Resistivity Ωmm2/m, at 20℃0.20±5%0.25±5%0.30±5%0.35±5%0.40±5%0.49±5%

Temperature factor of resistivity

10-5/℃(200-600℃)
<38<25<16<10-0<-6
Melting Point ℃111511351150117011801280
Tensile Strength MPa≥310≥340≥350≥400≥400≥420
Enlogation%(>1.0)≥25≥25≥25≥25≥25≥25
EMF VS Copper
V/℃(0-100℃)
-28-32-34-37-39-43
Specific heat capacity j/gk(20℃)0.380.380.380.390.400.41
Conductivity coefficient w/mk at20℃483833272523
Organizational attributeAusteniticAusteniticAusteniticAusteniticAusteniticAustenitic
MagneticNone-MagneticNone-MagneticNone-MagneticNone-MagneticNone-MagneticNone-Magnetic


Corrosion resistance performance

AlloysWorking In atmosphere at 20℃Working at max temperature 200℃

Air and oxygen contain

gases

gases with Nitrogen

gases with sulfur

oxidability

gases with sulfur

reductibility

carburization
OhmAlloy049goodgoodgoodgoodbadgood

Style of supply

Alloys NameTypeDimension
OhmAlloy049WWireD=0.06mm~8mm
OhmAlloy049RRibbonW=0.4~40T=0.05~2.9mm
OhmAlloy049SStripW=8~200mmT=0.1~3.0
OhmAlloy049FFoilW=6~120mmT=0.005~0.1
OhmAlloy049BBarDia=8~100mmL=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.


Product Tags:

CuNi44 Copper Based Alloys

      

Cuprothal49 Copper Based Alloys

      

Constantan Copper Based Strip

      
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