Cupronickel Copper-Nickel Alloys CuNi1 Constantan Heating Resistance Wire in Wire/Flat Wire/Ribbon/Foil/Bar

• Product Type: Wire
• Material: CuNi
• Carbon Content: Zero
• Type: Bare
• Conductor Type: Solid
• Application: Overhead, Heating, Underground
• Model NO.: SP-OhmAlloy 3
• Sheath Material: None
• Insulation Material: None
• Transport Package: Wooden Case
• Trademark: Ohmalloy
• Origin: China
• Production Capacity: 500t/Year

Product Description

Cupronickel Copper-Nickel Alloys CuNi1 Constantan Heating Resistance Wire in Wire/Flat Wire/Ribbon/Foil/Bar
 
OhmAlloy 3 (Resistance heating and resistance wire)

Common Name: CuNi1, Alloy3,HAI3.NC3

OhmAlloy 3 is a copper-nickel alloy (Cu99Ni1 alloy) with low resistivity for use at temperatures up to 200°C.

OhmAlloy 3 is kind of low resistance (heating) alloy.It is one of the key materials of the low-voltage electrical products. It is widely used in low-voltage circuit breaker, electric blankets.thermal overload relay and other low-voltage electrical product.



Copper Nickel Alloy Heating Resistance Wire and Strip Technique Data
 

Name	Our Code	Resistance Ω at 20 °C	the maximum temperature°C
Copper-nickel--1	OhmAlloy3	0.03	200
Copper-nickel--2	OhmAlloy5	0.05	200
Copper-nickel--8	OhmAlloy12	0.12	250
Copper-nickel--10	OhmAlloy15	0.15	250
Copper-nickel--14	OhmAlloy20	0.2	300
Copper-nickel--19	OhmAlloy25	0.25	300
Copper-nickel--23	OhmAlloy30	0.35	350
Copper-nickel--30	OhmAlloy35	0.35	350
Copper-nickel--34	OhmAlloy40	0.4	350
Copper-nickel--44	OhmAlloy49	0.5	400

Copper Nickel Alloy Heating Resistance Wire Cuni1 Technique Data

Normal composition%

Nickel	1	Manganese	-
Copper	Bal.

 Typical Mechanical Properties(1.0mm)

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
90	210	25

 Typical Physical Properties(1.0mm)

Density (g/cm3)	8.9
Electrical resistivity at 20ºC (Ωmm2/m)	0.03
Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC	<100
Conductivity coefficient at 20ºC (WmK)	145
EMF vs Cu(μV/ºC )(0~100ºC )	-8

 

Coefficient of thermal expansion
Temperature	Thermal Expansion x10-6/K
20 ºC- 400ºC	17.5

 

Specific heat capacity
Temperature	20ºC
J/gK	0.380

Melting point (ºC)	1085
Max continuous operating temperature in air (ºC)	200
Magnetic properties	non-magnetic

 Corrosion resistance performance

Alloys	Working In atmosphere at 20ºC	Working at max temperature 200ºC
		Air and oxygen contain gases	gases with Nitrogen	gases with sulfur oxidability	gases with sulfur reductibility	carburization
OhmAlloy3	good	bad	bad	bad	bad	good

 
 Style of supply

Alloys Name	Type	Dimension
OhmAlloy003W	Wire	D=0.06mm~8mm
OhmAlloy003R	Ribbon	W=0.4~40	T=0.05~2.9mm
OhmAlloy003S	Strip	W=8~200mm	T=0.1~3.0
OhmAlloy003F	Foil	W=6~120mm	T=0.005~0.1
OhmAlloy003B	Bar	Dia=8~100mm	L=50~1000