Constantan Alloy Wire 6j40

• Product Type: Wire
• Material: Cu Ni
• Carbon Content: Low Carbon
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: 6J40
• Color: Bright
• Transport Package: Coil, Woven Bag Pallet
• Specification: customized
• Trademark: ualloy
• Origin: Hangzhou, China
• Production Capacity: 500tons/Year
• Package Size: 50.00cm * 50.00cm * 40.00cm
• Package Gross Weight: 50.000kg

Product Description

Common Name:CuNi44,NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)

 

CuNi44 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 CuNi44 are  temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.

The combination of negligible temperature coefficient and high resistivity makes the alloy particulary suitable for the winding of precision resistors.

CuNi44 is manufactured from electrolytic copper and pure  nickel. In finer wire sizes the alloy is designated as CuNi44TC(Thermocouple).

Normal Composition%

Nickel	44	Manganese	1
Copper	Bal.

Typical Mechanical Properties(1.0mm)

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
250	420	25

 

Typical Physical Properties

Density (g/cm3)	8.9
Electrical resistivity at 20ºC (ohm*mm2/m)	0.49
Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC	-6
Conductivity coefficient at 20ºC (WmK)	23
EMF vs Cu(μV/ºC )(0~100ºC )	-43

 

Coefficient of thermal expansion
Temperature	Thermal Expansion x10-6/K
20 ºC- 400ºC	15

 

Specific heat capacity
Temperature	20ºC
J/gK	0.41

 

Melting point (ºC)	1280
Max continuous operating temperature in air (ºC)	400
Magnetic properties	non-magnetic

 

Corrosion resistance performance

Alloys	Working In atmosphere at 20ºC	Working at max temperature 200ºC
		Air and oxygen contain gases	gases withNitrogen	gases withsulfur oxidability	gases withsulfur reductibility	carburization
CuNi44	good	good	good	good	bad	good

 

Style of supply

Alloys Name	Type	Dimension
CuNi44W	Wire	D=0.03mm~8mm
CuNi44R	Ribbon	W=0.4~40	T=0.03~2.9mm
CuNi44S	Strip	W=8~200mm	T=0.1~3.0
CuNi44F	Foil	W=6~120mm	T=0.003~0.1
CuNi44B	Bar	Dia=8~100mm	L=50~1000