Home > Nickel Based Alloys >

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

Product Categories

JINXING MATECH CO LTD

Contact Now

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

Brand Name : JX

Model Number : Nickel Base Alloy Tube

Certification : ISO

Place of Origin : china

MOQ : 100kgs

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 3000T

Delivery Time : 35days

Packaging Details : Standard wooden case

Product Type : Nickel Base Alloy Tube

Material : Feni Alloy

Carbon Content : low

Transport Package : wooden case

Shape : round bar

Condition : soft

Surface : Bright

Origin : China

Contact Now

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%

Ni	41.5~42.5	Fe	Bal.	Co	-	Si	≤0.3
Mo	-	Cu	-	Cr	-	Mn	≤0.8
C	≤0.05	P	≤0.02	S	≤0.02	Al	≤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/ ºC	360
Elastic Modulus, E/ Gpa	147

Coefficient of expansion

θ/ºC	α1/10-6ºC-1	θ/ºC	α1/10-6ºC-1
20~100	5.6	20~400	5.9
20~200	4.9	20~450	6.9
20~300	4.8	20~500	7.8
20~350	4.95	20~600	9.2

Typical Mechanical properties

Tensile Strength	Elongation
Mpa	%
490	35

4j42 Tube Picture:

The heat treatment process
Annealing	Heated to 900 ±20ºC in a hydrogen atmosphere
Holding time, h	1 hour
cooling	With speed not more than 5 ºC / min. cooling to below 200 ºC

Style of supply

Alloys Name	Type	Dimension
Alloy-4J42	Wire	D= 0.1~8mm
Alloy-4J42	Strip	W= 5~250mm	T= 0.1mm
Alloy-4J42	Foil	W= 10~100mm	T= 0.01~0.1mm
Alloy-4J42	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.

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.

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

Inquiry Cart 0

Send your message to this supplier


*From:	Your email address is incorrect!
*To:	JINXING MATECH CO LTD
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!