Cuni Alloy Flat Wire

• Product Type: Wire
• Material: Cu Ni
• Carbon Content: 0
• Name: Copper Nickel Wire
• Resistance: Steady
• Surface: Bright,Anneal
• Model NO.: CuNi alloy
• Diameter: 0.04~8mm
• Transport Package: Coil+Sealant+Carton
• Specification: RoHS
• Trademark: REOU
• Origin: China
• HS Code: 74094000
• Production Capacity: 5tons Per Day

Product Description

Cuni Alloy Flat Wire"

We are the only manufacturer which gathers electrical heating alloy wire & strip and heating cable in China.
So no matter you need alloy bare wires or heating wires with any insulation, we can produce for you.
The Cuni alloy wire can be round and flat. The diameter and resistance are customized.

We produce CuNi1, CuNi2, CuNi6, CuNi8,CuMn3, CuNi10, CuNi14, CuNi19, CuNi22, CuNi23, CuNi30, CuNi34, CuNi40, CuNi44.  As known, CuNi 44 (also called Constantan) presents the advantage of a very low temperature coefficient.








The quality is quite high, and delivery is quite fast.

Chemical  Composition  and  Main  Property  of  Cu-Ni  Low  Resistance  Alloy
Properties\Grade		CuNi1	CuNi2	CuNi6	CuNi8	CuMn3	CuNi10
Main  Chemical  Composition	Ni	1	2	6	8	_	10
	Mn	_	_	_	_	3	_
	Cu	Bal	Bal	Bal	Bal	Bal	Bal
Max  Continuous  Service  Temperature(oC)		200	200	200	250	200	250
Resisivity  at  20oC  (Ω mm2/m)		0.03	0.05	0.1	0.12	0.12	0.15
Density(g/cm3)		8.9	8.9	8.9	8.9	8.8	8.9
Thermal  Conductivity(α × 10-6/oC)		< 100	< 120	< 60	< 57	< 38	< 50
Tensile  Strength(Mpa)		≥ 210	≥ 220	≥ 250	≥ 270	≥ 290	≥ 290
EMF  vs  Cu(μ V/oC)(0~100oC)		-8	-12	-12	-22	_	-25
Approximate  Melting  Point(  oC)		1085	1090	1095	1097	1050	1100
Micrographic  Structure		austenite	austenite	austenite	austenite	austenite	austenite
Magnetic  Property		non	non	non	non	non	non
Properties\Grade		CuNi14	CuNi19	CuNi23	CuNi30	CuNi34	CuNi44
Main  Chemical  Composition	Ni	14	19	23	30	34	44
	Mn	0.3	0.5	0.5	1	1	1
	Cu	Bal	Bal	Bal	Bal	Bal	Bal
Max  Continuous  Service  Temperature(oC)		300	300	300	350	350	400
Resisivity  at  20oC  (Ω mm2/m)		0.2	0.25	0.3	0.35	0.4	0.49
Density(g/cm3)		8.9	8.9	8.9	8.9	8.9	8.9
Thermal  Conductivity(α × 10-6/oC)		< 30	< 25	< 16	< 10	< 0	< -6
Tensile  Strength(Mpa)		≥ 310	≥ 340	≥ 350	≥ 400	≥ 400	≥ 420
EMF  vs  Cu(μ V/oC)(0~100oC)		-28	-32	-34	-37	-39	-43
Approximate  Melting  Point(  oC)		1115	1135	1150	1170	1180	1280
Micrographic  Structure		austenite	austenite	austenite	austenite	austenite	austenite
Magnetic  Property		non	non	non	non	non	non