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CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance
Specifications
Brand Name :
OHMALLOY
Model Number :
SP-CuNi44
Certification :
ISO9001:2015
Place of Origin :
China
MOQ :
5KG
Payment Terms :
L/C, T/T, , Paypal
Supply Ability :
30000 KG per month
Delivery Time :
3-18 working days after payment confirmed
Packaging Details :
Spool+paper case + wooden case/plastic packing+papre case+ wooden box outside(or customized)
Name :
CuNi44 Constantan Flat Wire High Electrical Resistance
Material Type :
CuNi44
Resistivity :
0.49(at 20℃ (Ωmm2/m))
Magnetic properties :
Non-magnetic
Density (g/cm3) :
8.9
Conductivity coefficient at 20℃ :
23WmK
Supply State :
Wire /Strip/ Rod/foil
Description

CuNi44 Constantan Flat Wire High Electrical Resistance

Constantan(OhmAlloy049.pdf)

(Common Name: CuNi44,.Cuprothal49, Alloy 294, Cuprothal 294, Alloy 49, 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.

CuNi44 Constantan Flat Wire High Electrical ResistanceCuNi44 Constantan Flat Wire High Electrical Resistance

Copper Nickel Alloy Production Standard(GB/T1234-95)

Performance　 Brand　 NC020
CuNi14		 NC025
CuNi19		 NC030
CuNi23		 NC035
CuNi30		 NC040
CuNi34		 NC050
CuNi44
Main Chemical Content％ Ni 14.2 19 23 30 34 44
Mn 0.3 0.5 0.5 1.0 1.0 1.0
Cu Bal. Bal. Bal. Bal. Bal. Bal.
Element Max Working Temperature℃ 300 300 300 350 350 400
Density g/cm3 8.9 8.9 8.9 8.9 8.9 8.9
Resistivity Ωmm2/m, at 20℃ 0.20±5％ 0.25±5％ 0.30±5％ 0.35±5％ 0.40±5％ 0.49±5％

Temperature factor of resistivity

10-5/℃(200-600℃)		 <38 <25 <16 <10 -0 <-6
Melting Point ℃ 1115 1135 1150 1170 1180 1280
Tensile Strength MPa ≥310 ≥340 ≥350 ≥400 ≥400 ≥420
Enlogation%(>1.0) ≥25 ≥25 ≥25 ≥25 ≥25 ≥25
EMF VS Copper
V/℃(0-100℃)		 -28 -32 -34 -37 -39 -43
Specific heat capacity j/gk(20℃) 0.38 0.38 0.38 0.39 0.40 0.41
Conductivity coefficient w/mk at20℃ 48 38 33 27 25 23
Organizational attribute Austenitic Austenitic Austenitic Austenitic Austenitic Austenitic
Magnetic None-Magnetic None-Magnetic None-Magnetic None-Magnetic None-Magnetic None-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=0.06mm~8mm
OhmAlloy049R Ribbon W=0.4~40 T=0.05~2.9mm
OhmAlloy049S Strip W=8~200mm T=0.1~3.0
OhmAlloy049F Foil W=6~120mm T=0.005~0.1
OhmAlloy049B Bar Dia=8~100mm L=50~1000

The addition of nickel to pure copper can significantly improve the strength, corrosion resistance, hardness, electrical resistance and thermoelectricity, and reduce the temperature coefficient of resistivity. Therefore, compared with other copper alloys, the mechanical and physical properties of cupronickel are extremely good, with good ductility, high hardness, beautiful color, corrosion resistance and deep drawing performance.


It is widely used as corrosion-resistant structural parts in shipbuilding, petroleum, chemical, construction, electric power, precision instruments, medical equipment, musical instruments and other departments. Some cupronickel has special electrical properties, which can be used to make resistance elements, thermocouple materials and compensation wires. Non-industrial cupronickel is mainly used to make decorative crafts.

Product tags

zirconium wire

,

4ga copper wire

,

copper constantan wire
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CuNi44 Constantan Flat Wire High Electrical Resistance

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Product Detail
Brand Name :
OHMALLOY
Model Number :
SP-CuNi44
Certification :
ISO9001:2015
Place of Origin :
China
MOQ :
5KG
Payment Terms :
L/C, T/T, , Paypal
Contact Supplier
CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance
CuNi44 Constantan Flat Wire High Electrical Resistance

Ohmalloy Material Co.,Ltd

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