Name: CuNiCopper Nickel Alloy Resistor 010mm1000mm Constantan Heating Resistance Wire
Brand: TANKII
Price: 1 USD

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CuNiCopper Nickel Alloy Resistor 0.10mm-10.00mm Constantan Heating Resistance Wire

Categories	Copper Nickel Alloy Wire
Brand Name:	TANKII
Model Number:	Constantan
Certification:	9001
Place of Origin:	Shanghai, China
MOQ:	10 KG
Price:	negotiable
Payment Terms:	L/C, T/T, Western Union
Supply Ability:	100 Tons per month
Delivery Time:	7-20 days
Packaging Details:	Spool + Carton + Wooned Case
Model NO.:	CUNI44
Diameter:	0.05mm Min.
Resistivity:	0.49 ohm mm2/m
Density:	8.9 g/cm3
Spool:	DIN 63-DIN 250
Trademark:	TANKII
HS Code:	74082200
Surface:	Bright

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Shanghai Tankii Alloy Material Co.,Ltd

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CuNiCopper Nickel Alloy Resistor 0.10mm-10.00mm Constantan Heating Resistance Wire

Constantan is a copper-nickel alloy that is widely used in various applications, particularly for its electrical and thermal properties. Here are some key details about constantan wire:

Composition:
- Constantan is typically composed of approximately 55% copper and 45% nickel.
- The precise copper-nickel ratio can vary slightly depending on the specific alloy composition.
Electrical Properties:
- Constantan has a high electrical resistivity, making it suitable for use in resistors, thermocouple wires, and resistance temperature detectors (RTDs).
- It has a low and stable temperature coefficient of resistance, which is an important property for applications where precise resistance measurement is required.
Thermal Properties:
- Constantan has a relatively low thermal conductivity compared to pure copper, which makes it useful for applications where thermal isolation is needed.
- It also has a high Seebeck coefficient, making it a popular choice for thermocouple applications where the generation of a thermoelectric voltage is desired.
Applications:
- Thermocouple wires: Constantan is commonly used as one of the two wires in Type T (copper-constantan) thermocouples, which are widely used in temperature measurement applications.
- Resistors: Constantan wire is used to make precision resistors due to its stable electrical resistance.
- Strain gauges: Constantan's electrical resistance change under stress makes it suitable for use in strain gauge applications.
- Electrical components: Constantan wire is used in various electrical components, such as potentiometers and rheostats.

Constantan wire is available in a range of diameters and is commonly used in various industrial, scientific, and engineering applications that require its unique electrical and thermal properties.

Copper nickel alloy

Main property		Cuni1	CuNI2	CuNI6	CuNI10	CuNi19	CuNi23	CuNi30	CuNi34	CuNI44
Main chemical composition	Ni	1	2	6	10	19	23	30	34	44
	MN	/	/	/	/	0.5	0.5	1.0	1.0	1.0
	CU	rest	rest	rest	rest	rest	rest	rest	rest	rest
max working Temperature °c		/	200	220	250	300	300	350	350	400
Density g/cm3		8.9	8.9	8.9	8.9	8.9	8.9	8.9	8.9	8.9
Resistivity at 20 °c		0.03 ± 10%	0.05 ±10%	0.1 ±10%	0.15 ±10%	0.25 ±5%	0.3 ±5%	0.35 ±5%	0.40 ±5%	0.49 ±5%
Temperature coefficient of Resistance		<100	<120	<60	<50	<25	<16	<10	-0	<-6
Tensile strength Mpa		>210	>220	>250	>290	>340	>350	>400	>400	>420
elongation		>25	>25	>25	>25	>25	>25	>25	>25	>25
Melting point °c		1085	1090	1095	1100	1135	1150	1170	1180	1280
coefficient of conductivity		145	130	92	59	38	33	27	25	23

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