CuNi44 Constantan Alloy Heating Wire

• Customization: Available
• Purity: Ni45
• Alloy: Alloy
• Model NO.: CuNi44
• Type: Copper Nickel Alloy
• Powder: Not Powder
• Serves: Small Order Accepted
• Size: Sample Available
• Other Name: Nco10
• Resisivity: 0.12milliohm/M
• Melting Point: 1095
• Density: 8.9(g/cm3)
• OEM: Yes
• Stock: Seyn
• Sample (Less Than1kg): Can Discuss
• Transport Package: Woodren Case or Cartons
• Specification: 0.3/0.5/0.8/1.0/1.2/1.6/2.0/2.5/3.2mmm
• Trademark: HUONA
• Origin: Shanghai
• HS Code: 74082200
• Production Capacity: 2000tons/Year

Product Description

Copper Nickel Alloys Wire Constantan/Konstantan Wire CuNi44/CuNi40/CuNi45 for Shunt

As a big manufacturer and exporter in China on the line of electric resistance alloy, we can supply all kinds of electric resistance alloy wire and strips (resistance steel wire and strips),
Material: CuNi1, CuNi2, CuNi6, CuNi8, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi44
General Description
Due to has high tensile strength and increased resistivity values, TANKII copper nickel alloy wires are the first choice for applications as resistance wires. with the different nickel amount in this product range, the characteristics of the wire can be chosen according to your requirements. Copper nickel alloy wires are available as bare wire, or enamelled wire with any insulation and self-bonding enamel. Furthermore, litz wire made of enamelled copper nickel alloy wire are available.
Features
1. Higher resistance than copper
2. High tensile strength
3. Good bending proof performance
Application
1. Heating applications
2. Resistance wire
3. Applications with high mechanical requirements
 

Characteristic	Resistivity ( 200C μ Ω . m)	Max. working Temperature ( 0C)	Tensile Strength (Mpa)	Melting point (0C)	Density ( g/cm3)	TCR x10-6/ 0C (20~600 0C)	EMF vs Cu (μ V/ 0C) (0~100 0C)
Alloy Nomenclature
NC003 (CuNi1)	0.1	200	≥ 250	1095	8.9	< 100	-12

 

Physical Properties	Metric	Comments
Density	8.94 g/cc
Mechanical Properties	Metric	Comments
Tensile Strength, Ultimate	262 - 531 MPa
Tensile Strength, Yield	276 - 524 MPa	Depending on temper
Elongation at Break	46.0 %	in 50.8 mm.
Modulus of Elasticity	115 GPa
Poissons Ratio	0.310	Calculated
Machinability	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	44.0 GPa
Electrical Properties	Metric	Comments
Electrical Resistivity	0.0000120 ohm-cm @Temperature 20.0 ° C
Thermal Properties	Metric	Comments
CTE, linear	17.5 µ m/m-° C @Temperature 20.0 - 300 ° C
Specific Heat Capacity	0.380 J/g-° C
Thermal Conductivity	64.0 W/m-K @Temperature 20.0 ° C
Melting Point	< = 1125 ° C	Liquidus
Liquidus	1125 ° C
Processing Properties	Metric	Comments
Annealing Temperature	565 - 815 ° C
Hot-Working Temperature	815 - 950 ° C
Component Elements Properties	Metric	Comments
Copper, Cu	> = 91.2 %
Iron, Fe	1.30 - 1.70 %
Lead, Pb	< = 0.050 %
Manganese, Mn	0.30 - 0.80 %
Nickel, Ni	4.80 - 6.20 %
Zinc, Zn	< = 1.0 %

CuNi44 Chemical Content, %

Ni	Mn	Fe	Si	Cu	Other	ROHS Directive
						Cd	Pb	Hg	Cr
44	1%	0.5	-	Bal	-	ND	ND	ND	ND

 
Mechanical Properties

Max Continuous Service Temp	400ºC
Resisivity at 20ºC	0.49±5%ohm mm2/m
Density	8.9 g/cm3
Thermal Conductivity	-6(Max)
Melting Point	1280ºC
Tensile Strength,N/mm2   Annealed,Soft	340~535 Mpa
Tensile Strength,N/mm3   Cold Rolled	680~1070 Mpa
Elongation(anneal)	25%(Min)
Elongation(cold rolled)	≥Min)2%(Min)
EMF vs Cu, μV/ºC (0~100ºC)	-43
Micrographic Structure	austenite
Magnetic Property	Non

Application of Constantan
Constantan is a copper-nickel alloy that contains specific minor amounts of additional
elements to achieve precise values for the temperature coefficient of resistivity. Careful
control of melting and conversion practices results in a very low level of pinholes at
ultra-thin thicknesses. The alloy is used extensively for foil resistors and strain gauges.