• Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.
  • Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.
  • Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.
  • Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.
  • Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.
  • Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.

Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.

Product Type: Tube
Material: Feni52
Carbon Content: Low Carbon
PCD: 98mm
ET: 0
Hole: 0
Customization:

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Basic Info.

Model NO.
Alloy52
Status
Polished
Type
Seamless
State
Hard
Transport Package
Wooden Case
Specification
1.6x0.5
Trademark
UALLOY
Origin
Hangzhou
HS Code
7505120000
Production Capacity
5tons/Year

Product Description

   Alloy 52 (Vacoil52) Expansion alloy tube meet Sealing Industry Standard AS90003, Rev. 2001-10. Require.
(Common Name: 52H,N52 , FeNi52, Vacodil52)
    Alloy52 The iron-nickel constant expansion alloy is a series of constant expansion alloys that can be matched with soft glass and ceramics with different expansion coefficients in a given temperature range by adjusting the nickel content. Its expansion coefficient and Curie point increase with the increase in nickel content. The combination gold is a sealing structure material widely used in the electric vacuum industry.
    The alloy is mainly used for sealing with soft lead glass and small electronic tube leads. Zh
In the application, the selected sealing material should match the expansion coefficient of the alloy. The grain size should be controlled during heat treatment to ensure that the material has good deep-drawing properties. When using forged and rolled materials, the air tightness of the materials should be strictly checked.

Normal composition%
Ni 51.5~52.5 Fe Bal. Co - Si ≤0.3
Mo - Cu - Cr - Mn ≤0.8
C ≤0.05 P ≤0.02 S ≤0.02    
Typical Physical properties
Density (g/cm3) 8.25
Electrical resistivity at 20ºC(ohm.mm2/m) 0.43
Temperature factor of resistivity(20ºC~200ºC)X10-6/ºC 9.8~11
Thermal conductivity, λ/ W/(m*ºC) 16.7
Curie point   Tc/ ºC 520
Elastic Modulus,  E/ Gpa 144

Coefficient of expansion
θ/ºC α1/10-6ºC-1 θ/ºC α1/10-6ºC-1
20~-60   20~100 10.3
20~-40   20~200 10.4
20~-20   20~300 10.2
20~-0   20~350 10.3
20~50   20~400 10.3
20~100   20~450 10.3
20~150   20~500 10.3
20~200   20~600 10.8

Typical Mechanical properties

Tensile Strength Elongation
Mpa %
641 14
689 9
731 8
 
The heat treatment process
Annealing for stress relief Heated to 530~550ºC and hold 1~2 h. Cold down
annealing In order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880ºC in vacuum,hold 30 min.
The stabilization process
In protective media and heated to 830 ºC, hold 20min. ~ 1h, quench
Due to the stress generated by quenching, heated to 315ºC,hold 1~4h.
Precautions
Can not be hardened by heat treatment,
Surface treatment can be sandblasting, polishing or pickling.
Alloy can be used 25% hydrochloric acid pickling solution at 70 ºC to clear oxidized surface

 Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.


 
Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.

Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.
Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.


 Alloy 52 (Vacoil52) Expansion Alloy Tube Meet Sealing Industry Standard As90003, Rev. 2001-10. Require.


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 batch,6m/order.
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.


 

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Manufacturer/Factory & Trading Company
Number of Employees
15
Year of Establishment
2012-02-06