Etching Electronics Components Low Expansion Alloys Ni33Co17 8.27 g/cm3 Density

Trade on HiSupplier, Worry Free Guarantee
Trading safety, secure your money, lower the risk, protect both buyers and suppliers
HiSupplier is a Chinese multinational company in U.S, it helps to coordination and order landing.
More ›
  • Product Details
  • Company Profile
  • Product Reviews

Etching Electronics Components Low Expansion Alloys Ni33Co17 8.27 g/cm3 Density

 

Ohmalloy-4J33 for Etching Electronics components

 

OhmAlloy-4J33 (Expansion alloy)


(Common Name: 33, 4J33, KV-4, Ni33Co17)

 

4J33 alloy has a close Linear expansion coefficient with 95% Al2O3 ceramic in the range of -60 to 600 degrees Celsius. it is an Important sealing structural material in the electric vacuum industry; Mainly used for matching and ceramic sealing.

 

Normal composition%

Ni 32.0~33.6 Fe Bal. Co 14.0~15.2 Si ≤0.3
Mo - Cu - Cr - Mn ≤0.5
C ≤0.05 P ≤0.02 S ≤0.02    

 

 

 

Typical Physical properties

Density (g/cm3) 8.27
Electrical resistivity at 20(mm2/m) 0.46
Thermal conductivity, λ/ W/(m*) 17.6
Curie point Tc/ 440
Elastic Modulus, E/ Gpa 139

 

 

 

 

 

 

 

Typical Mechanical properties

Tensile Strength Elongation
Mpa %
539 32

 

 

The heat treatment process
Stress relief annealing Heating to 470~540. Keep 1~2h, cooling in the air
Annealing Heating to 750~ 900 In the medium vacuum
Holding time, h 15min. ~ 1 hour
cooling In the air

 

 

Coefficient of expansion

θ/ α1/10-6-1 θ/ α1/10-6-1
20~300 6.3 20~400 6.1
20~500 6.9 20~600 8.3

 

 

 

Style of supply

Alloys Name Type Dimension  
OhmAlloy-4J33 Wire D= 0.1~8 mm  
OhmAlloy-4J33 Strip W= 5~250 mm T= 0.1 mm
OhmAlloy-4J33 Foil W= 10~100 mm T= 0.01~0.1 mm
OhmAlloy-4J33 Bar Dia= 8~100 mm L= 50~1000 mm

 

 

 

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.


Send message to this supplier
Mr. Mr. Qiu
Tel: 86-21-66796338
Enter between 20 to 3,000 chatacters.
Contact Method
Ohmalloy Material Co.,Ltd
No 1502, Youyi Road, Baoshan district, Shanghai, China (Mainland)
Didn't find what you're looking for? Post Buying Lead or contact our customer service specialist for help!
Buyer Help Center