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Ohmalloy Material Co.,Ltd

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Good quality Bimetallic Strip for sales
Good quality Bimetallic Strip for sales
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Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material

China Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material supplier
Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material supplier Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material supplier Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material supplier Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material supplier Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material supplier

Large Image :  Winding Heating Resistance Wire Constantan / Copper Nickel / CuNi44 Material

Product Details:

Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: ISO9001-2008
Model Number: cuni constantan

Payment & Shipping Terms:

Minimum Order Quantity: 20KG
Price: 20-50USD/KG
Packaging Details: Roll/Spool
Delivery Time: 7-10 days
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 50 Tons per month
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Detailed Product Description
Material: Constantan Density (g/cm3): 8.9
Electrical Resistivity At 20℃ (Ωmm2/m): 0.49 Tensile Strength: 420Mpa
Yield Strength: 250Mpa Elongation: 25%

Constantan( Ohmalloy 049)
(Common Name: CuNi45, NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)

 

OhmAlloy049 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C

Typical applications for OhmAlloy49 are temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.

The combination of negligible temperature coefficient and high resistivity makes the alloy particulary suitable for the winding of precision resistors.

OhmAlloy049 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as OhmAlloy49TC(Thermocouple).

Normal composition%

Nickel 45 Manganese 1
Copper Bal.    

 

Typical Mechanical properties(1.0mm)

Yield strength Tensile Strength Elongation
Mpa Mpa %
250 420 25

 

Typical Physical properties

Density (g/cm3) 8.9
Electrical resistivity at 20℃ (Ωmm2/m) 0.49
Temperature factor of resistivity(20℃~600℃)X10-5/℃ -6
Conductivity coefficient at 20℃ (WmK) 23
EMF vs Cu(μV/℃ )(0~100℃ ) -43

 

 

 

 

Coefficient of thermal expansion

Temperature Thermal Expansion x10-6/K
20 ℃- 400℃ 15

 

Specific heat capacity
Temperature 20℃
J/gK 0.41

 

Melting point (℃) 1280
Max continuous operating temperature in air (℃) 400
Magnetic properties non-magnetic

 

Corrosion resistance performance

 

 

Alloys

 

Working In atmosphere at 20℃

Working at max temperature 200℃

Air and oxygen contain

gases

gases with Nitrogen

gases with sulfur

oxidability

gases with sulfur

reductibility

carburization
OhmAlloy049 good good good good bad good

 

Style of supply

Alloys Name Type Dimension
OhmAlloy049W Wire D=0.03mm~8mm
OhmAlloy049R Ribbon W=0.4~40 T=0.03~2.9mm
OhmAlloy049S Strip W=8~200mm T=0.1~3.0
OhmAlloy049F Foil W=6~120mm T=0.003~0.1
OhmAlloy049B Bar Dia=8~100mm L=50~1000

Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Mr. Qiu

Tel: +8613795230939

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