Specifications
Brand Name :
OHMALLOY
Model Number :
Hecnum
Certification :
SGS, ISO, RoHS
Place of Origin :
China(Shanghai)
MOQ :
30 KG
Price :
negotiable
Payment Terms :
L/C, D/A, D/P, T/T,
Supply Ability :
5000 KG per month
Delivery Time :
15 working days
Packaging Details :
Spool or Coil + Waterproof paper + Wooden case
Material :
CuNi alloy
Application :
precision resistors
Annealing Treatment :
In Vacuum Furnace
Condition :
Soft,bright
Thickness :
0.25
Width :
3mm
Surface :
Bright
Density :
8.9 g/cm3
Elongation :
more than 15%
Package :
Spool, Coil, Wooden case
Description

0.25mm*3.0mm Copper nickel alloy Hecnum Tape on DIN 125 reels

(Common Name:CuNi44,NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)

CuNi44 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 CuNi44 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.

CuNi44 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as CuNi44TC(Thermocouple).

Normal composition%

Nickel 44 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
CuNi44 good good good good bad good

Style of supply

Alloys Name Type Dimension
CuNi44W Wire D=0.03mm~8mm
CuNi44R Ribbon W=0.4~40 T=0.03~2.9mm
CuNi44S Strip W=8~200mm T=0.1~3.0
CuNi44F Foil W=6~120mm T=0.003~0.1
CuNi44B Bar Dia=8~100mm L=50~1000

0.25mm * 3.0mm Copper Nickel Alloy Hecnum Tape On DIN 125 Reels Bright Surface

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0.25mm * 3.0mm Copper Nickel Alloy Hecnum Tape On DIN 125 Reels Bright Surface

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Brand Name :
OHMALLOY
Model Number :
Hecnum
Certification :
SGS, ISO, RoHS
Place of Origin :
China(Shanghai)
MOQ :
30 KG
Price :
negotiable
Contact Supplier
0.25mm * 3.0mm Copper Nickel Alloy Hecnum Tape On DIN 125 Reels Bright Surface
0.25mm * 3.0mm Copper Nickel Alloy Hecnum Tape On DIN 125 Reels Bright Surface

Ohmalloy Material Co.,Ltd

Verified Supplier
10 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company
Total Annual :
4000000-6000000
Employee Number :
20~50
Certification Level :
Verified Supplier
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