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Size 0.008mm × 100mm Copper Nickel Alloy Wire Soft Annealled Foil Use

**Size 0.005mm * 100mm Constantan(CuNi40) Foil Use For Strain Gauge**

2. Product Description

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.

Chemical Content, %

Ni	Mn	Fe	Si	Cu	Other	ROHS Directive
						Cd	Pb	Hg	Cr
40	1.50%	-	-	Bal	-	ND	ND	ND	ND

Mechanical Properties

Max Continuous Service Temp	400℃
Resisivity at 20℃	0.48±3%ohm mm2/m
Density	8.9 g/cm3
Thermal Conductivity	-6(Max)
Melting Point	1280℃
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
TCR	-40~+40

Constantan Tradenames:

Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45,

Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan

Resistance Alloy- Constantan Sizes / Temper Capabilities

1; Condition: Bright, Annealed, Soft
2; Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
3; Rod, Bar diameter 1mm-30mm
4; Strip: Thickness 0.05mm-7mm, Width 1mm-280mm

Resistance Series:

Charact eristic	Resistivity ( 200C μΩ.m)	Max.working Temperature ( 0C)	Tensile Strength (Mpa)	Melting point (0C)	Density ( g/cm3)	TCR x10-6/ 0C (20~600 0C)	EMF vs Cu (μV/ 0C) (0~100 0C)
Alloy Nomenc lature	Resistivity ( 200C μΩ.m)	Max.working Temperature ( 0C)	Tensile Strength (Mpa)	Melting point (0C)	Density ( g/cm3)	TCR x10-6/ 0C (20~600 0C)	EMF vs Cu (μV/ 0C) (0~100 0C)
NC003 (CuNi1)	0.03	200	210	1085	8.9	<100	-8
NC005 (CuNi2)	0.05	200	220	1090	8.9	<120	-12
NC010 (CuNi6)	0.1	220	250	1095	8.9	<60	-18
NC012 (CuNi8)	0.12	250	270	1097	8.9	<57	-22
NC015 (CuNi10)	0.15	250	290	1100	8.9	<50	-25
NC020 (CuNi14)	0.2	300	310	1115	8.9	<30	-28
NC025 (CuNi19)	0.25	300	340	1135	8.9	<25	-32
NC030 (CuNi23)	0.3	300	350	1150	8.9	<16	-34
NC035 (CuNi30)	0.35	350	400	1170	8.9	<10	-37
NC040 (CuNi34)	0.4	350	400	1180	8.9	0	-39
NC050 (CuNi44)	0.5	400	420	1200	8.9	<-6	-43

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Categories	Copper Nickel Alloy Wire
Brand Name:	TANKII
Model Number:	Constantan
Certification:	ISO
Place of Origin:	China
MOQ:	20kg
Payment Terms:	Western Union, T/T, L/C
Supply Ability:	20,000kg/Week
Packaging Details:	Strip/Wire/Ribbon diameter 0.005mm-1.0mm packing in spool, big than 1.50mm packing in coil
State:	Soft annealled or Hard
Sample supply:	small sample supply is available
Model Number::	constantan
Chemical Composition:	: Cu, Mn, Ni
Insulation Material:	: bare
Application:	: Resistance