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CuNi44 Constantan Flat Wire High Electrical Resistance

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Ohmalloy Material Co.,Ltd

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:86-21-66796338

Contact Person:
Mr.Qiu
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CuNi44 Constantan Flat Wire High Electrical Resistance

Brand Name OHMALLOY
Model Number SP-CuNi44
Certification ISO9001:2015
Place of Origin China
Minimum Order Quantity 1KG
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
Elongation 25%
Resistivity 0.49(at 20℃ (Ωmm2/m))
Density (g/cm3) 8.9
Conductivity coefficient at 20℃ 23WmK
Supply State flat wire
Detailed Product Description

0.08mm*0.8mm CuNi44 Constantan flat wire high electrical resistance flat wire

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).
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.
 

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

good

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



FAQ
1. What's the minimum quantity customer can order?

If we have your size in stock, we can provide any quantity you want.

If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.

 

2. How can you pay for small sample amount?

We have account, wire transfer for sample amount also ok.

 

3. Customer do not have express account. How will us arrange the delivery for sample order?

Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.

 

4. What's our payment terms?

We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.

 

5. Do you provide free samples?

If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.

 

6. What's our working time?

We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.

Product Tags: CuNi44 Constantan Flat Wire   Cu56Ni44 Alloy Flat Wire   Corrosion Resistance Constantan Flat Wire  
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