Nilo42 Expansion Alloy Strip Sealing Glass Block in Electronics Industry

China Nilo42 Expansion Alloy Strip Sealing Glass Block in Electronics Industry, Find details about China 4j42 Strip, Expansion Alloy Strip from Nilo42 Expansion Alloy Strip Sealing Glass Block in Electronics Industry

Certificate
SGS, ISO, RoHS
Sample
Free Sample
Resistivity(μΩ.M)
0.61
Density, g/cm3
8.2
Surface Treatment
Bright or Oxidation
Width
9~250 mm
Application
Sealing Material
Elastic Modulus, E/ Gpa
139
Temperature Factor of Resistivity
3.7~3.9
Curie Point Tc/ ºC
360
Trademark
Ohmalloy
Transport Package
Coil+ Waterproof Paper+ Wooden Case
Specification
Diameter: 0.1~5.0 mm
Origin
Shanghai, China
HS Code
7226999001
Certificate
SGS, ISO, RoHS
Sample
Free Sample
Resistivity(μΩ.M)
0.61
Density, g/cm3
8.2
Surface Treatment
Bright or Oxidation
Width
9~250 mm
Application
Sealing Material
Elastic Modulus, E/ Gpa
139
Temperature Factor of Resistivity
3.7~3.9
Curie Point Tc/ ºC
360
Trademark
Ohmalloy
Transport Package
Coil+ Waterproof Paper+ Wooden Case
Specification
Diameter: 0.1~5.0 mm
Origin
Shanghai, China
HS Code
7226999001
(Common Name: 42H Glass Sealing 42, Nilo42, N42, FeNi42)

4J42 alloy is mainly composed of iron, nickel elementsIt is characterized with a fixed coefficient of expansionIncrease the thermal expansion coefficient and the Curie point with increase of nickel content.
4J42 alloy is widely used the structure of the sealing material in the electric vacuum industry.

 

Normal composition%

Ni41.5~42.5FeBal.Co-Si≤0.3
Mo-Cu-Cr-Mn0.8
C≤0.05P≤0.02S≤0.02Al0.1
 

Typical Physical properties

Density (g/cm3)8.12
Electrical resistivity at 20ºC(Om*mm2/m)0.61
Thermal conductivity, λ/ W/(m*ºC)14.6
Curie point   Tc/ ºC360
Elastic Modulus,  E/ Gpa147




Coefficient of expansion
θ/ºCα1/10-6ºC-1θ/ºCα1/10-6ºC-1
20~1005.620~4005.9
20~2004.920~4506.9
20~3004.820~5007.8
20~3504.9520~6009.2

Typical Mechanical properties

Tensile StrengthElongation
Mpa%
49035
 
The heat treatment process
Annealing Heated to 900 ±20ºC in a hydrogen atmosphere
Holding time, h1 hour
coolingWith speed not more than 5 ºC / min. cooling to below 200 ºC

Style of supply
Alloys NameTypeDimension 
OhmAlloy-4J42WireD= 0.1~8mm 
OhmAlloy-4J42StripW= 5~250mmT= 0.1mm
OhmAlloy-4J42FoilW= 10~100mmT= 0.01~0.1
OhmAlloy-4J42BarDia= 8~100mmL= 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 Western union 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.