Copper Alloy Resistance Wire Electrical Wire for Machine Oven High Power

• Product Type: Wire
• Material: CuNi
• Carbon Content: Zero
• Type: Bare
• Conductor Type: Solid
• Application: Overhead, Heating, Underground
• Model NO.: SP-OhmAlloy025
• Sheath Material: None
• Insulation Material: None
• OEM: Available
• Transport Package: Wooden Case
• Specification: 0.06mm~8mm
• Trademark: Ohmalloy
• Origin: China
• Production Capacity: 500t/Year

Product Description

Copper Alloy Resistance Wire Electrical Wire for Machine Oven High Power
 
OhmAlloy025 (Resistance heating wire and resistance wire)
Common Name:CuNi19,CN25

OhmAlloy025 is a copper-nickel alloy (Cu81Ni19 alloy) with low resistivity for use at temperatures up to 300°C.

OhmAlloy025 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.

OhmAlloy025 is typically used for low-temperature applications such as floor heating cables.



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	200
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 Cuni8 Technique Data

Normal composition%

Nickel	19	Manganese	0.5
Copper	Bal.

Typical Mechanical properties(1.0mm)

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
155	340	25

Typical Physical properties

Density (g/cm3)	8.9
Electrical resistivity at 20ºC (Ωmm2/m)	0.25
Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC	<25
Conductivity coefficient at 20ºC (WmK)	38
EMF vs Cu(μV/ºC )(0~100ºC )	-32

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)	1135
Max continuous operating temperature in air (ºC)	300
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
OhmAlloy020	good	bad	bad	bad	bad	good

Style of supply

Alloys Name	Type	Dimension
OhmAlloy025W	Wire	D=0.06mm~8mm
OhmAlloy025R	Ribbon	W=0.4~40	T=0.05~2.9mm
OhmAlloy025S	Strip	W=8~200mm	T=0.1~3.0
OhmAlloy025F	Foil	W=6~120mm	T=0.005~0.1
OhmAlloy025B	Bar	Dia=8~100mm	L=50~1000

Our Packing