China 0.01mm Ultra Fine Enameled CuNi44 Constantan Wire for Precision Resistance Applications Manufacture and Factory

0.01mm Ultra Fine Enameled CuNi44 Constantan Wire for Precision Resistance Applications

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0.01mm Ultra Fine Enameled CuNi44 Constantan Wire for Precision Resistance Applications

Product Description

0.01mm ultra fine enameled CuNi44 Constantan wire is a precision resistance alloy wire manufactured from copper nickel alloy CuNi44 (6J40). With excellent electrical stability, low temperature coefficient of resistance and outstanding flexibility, it is designed for high-precision applications requiring miniature size and reliable performance.

The wire can be supplied with different enamel insulation systems including Polyester (PE), Polyester-imide (PEI), Polyimide (PI) and Polyamide-imide (PAI), providing different levels of temperature resistance, mechanical strength and chemical stability.

Due to its ultra-fine diameter and excellent processing capability, this enameled Constantan wire is widely used in medical devices, micro sensors, precision resistors, electronic components, measurement instruments and other advanced applications.

Tpye of Insulation:

1) Polyester resistance wire , class 130

2) Modified polyester resistance wire , class 155

3) Polyesterimide resistance wire , class 180

4) Polyester (imide) coated with polyamide-imide resistance wire , class 200

5) Polyimide resistance wire , class 220

		Constantan 6J40	New Constantan	Manganin	Manganin	Manganin
			6J11	6J12	6J8	6J13
Main Chemical Elements %	Mn	1~2	10.5~12.5	11~13	8~10	11~13
	Ni	39~41	-	2~3	-	2~5
	Cu	REST	REST	REST	REST	REST
			Al2.5~4.5 Fe1.0~1.6		Si1~2
Temperature Range for Components		5~500	5~500	5~45	10~80	10~80
Density		8.88	8	8.44	8.7	8.4
g/cm3
Resistivity		0.48	0.49	0.47	0.35	0.44
μΩ.m,20		±0.03	±0.03	±0.03	±0.05	±0.04
Extensibility		≥15	≥15	≥15	≥15	≥15
%Φ0.5
Resistance		-40~+40	-80~+80	-3~+20	-5~+10	0~+40
Temperature
Quotiety
α,10 -6 /
Thermoelectromotive		45	2	1	2	2
force to Copper
μv/(0~100)

Tpye of Bare Wire

main property type		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		/	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