Nickel Base Alloy Tube Invar 42 4j42 Tube Sealing Aircraft Vacuum Instruments

Brand Name:JX
Certification:ISO
Model Number:Nickel Base Alloy Tube
Minimum Order Quantity:100kgs
Delivery Time:35days
Payment Terms:L/C, T/T
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Nickel Base Alloy Tube Invar 42 4j42 Tube Sealing Aircraft Vacuum Instruments


Alloy-4J42 (Expansion alloy)
(Common Name: 42H Glass Sealing 42, Nilo42, N42, FeNi42)

4j42 Tube is mainly composed of iron, nickel elements. It is characterized with a fixed coefficient of expansion. Increase 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.

4j42 Tube Normal composition%

Ni41.5~42.5FeBal.Co-Si≤0.3
Mo-Cu-Cr-Mn≤0.8
C≤0.05P≤0.02S≤0.02Al≤0.1


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

4j42 Tube Picture:


The heat treatment process
AnnealingHeated 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
Alloy-4J42WireD= 0.1~8mm
Alloy-4J42StripW= 5~250mmT= 0.1mm
Alloy-4J42FoilW= 10~100mmT= 0.01~0.1mm
Alloy-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.

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.

China Nickel Base Alloy Tube Invar 42 4j42 Tube Sealing Aircraft Vacuum Instruments supplier

Nickel Base Alloy Tube Invar 42 4j42 Tube Sealing Aircraft Vacuum Instruments

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