Heating Element Wire CuNi23 Alloy

• Customization: Available
• Type: CuNi Wire
• Application: Air Condition or Refrigerator, Water Tube, Water Heater, Oil Cooler Pipe, Resistors
• Model NO.: ohmalloy030
• Material: Red Copper
• Shape: Round
• Alloy: Alloy
• Color: Red
• Standard: GB/T
• Density: 8.9
• Resistivity: 0.30
• Elongation: 25
• Tensile Strength: 350 MPa
• Yield Strength: 170 MPa
• Melting Point: 1150 C
• Operating Temperature: 300 C
• Transport Package: Spool
• Specification: D=0.03mm~8mm
• Trademark: Ohmalloy
• Origin: Shanghai
• HS Code: 7408290000
• Production Capacity: 80000 Kilograms Per Week

Product Description

OhmAlloy030(Resistance heating wire and resistance wire)
(Common Name:CuNi23,NC30,Curpothal30)

OhmAlloy030 is a copper-nickel alloy (Cu77Ni23 alloy) with low resistivity for use at temperatures up to 300°C.

OhmAlloy030 is typically used for applications such as heating cables, fuses, shunts, resistors and various types of controllers.
 

Normal composition%

Nickel	23	Manganese	0.5
Copper	Bal.

 

Typical Mechanical properties(1.0mm)

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
170	350	25

 

Typical Physical properties

Density (g/cm3)	8.9
Electrical resistivity at 20ºC (Ωmm2/m)	0.30
Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC	<16
Conductivity coefficient at 20ºC (WmK)	33
EMF vs Cu(μV/ºC )(0~100ºC )	-34

 

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)	1150
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
OhmAlloy030	good	general	general	general	bad	good

Style of supply

Alloys Name	Type	Dimension
OhmAlloy030W	Wire	D=0.06mm~8mm
OhmAlloy030R	Ribbon	W=0.4~40	T=0.05~2.9mm
OhmAlloy030S	Strip	W=8~200mm	T=0.1~3.0
OhmAlloy030F	Foil	W=6~120mm	T=0.005~0.1
OhmAlloy030B	Bar	Dia=8~100mm	L=50~1000