China Copper Nickel Alloy Wire manufacturer
Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
11
Home > Products > High Temp Alloy >

Ni29co18/ Uns K94610 (4J29) Kovar Expansion Precision Alloy Pipe / Tube

Browse Categories

Shanghai Tankii Alloy Material Co.,Ltd

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:86-21-56110178

Contact Person:
Mr.Martin Lee
View Contact Details

Ni29co18/ Uns K94610 (4J29) Kovar Expansion Precision Alloy Pipe / Tube

Brand Name TANKII
Model Number Kovar Alloys
Certification ISO SGS
Place of Origin Shanghai, China,
Minimum Order Quantity Negotiable
Price negotiable
Payment Terms L/C, T/T, Western Union
Supply Ability 1000000 Pcs per Month
Delivery Time 7-15 work days
Packaging Details wooden case / Carton
Material Fe-Ni-Co Alloys
Diameter 1mm Min
Wall thickness 0.02mm Min
Length customized
Sample Accepted
Surface Bright
Name Ni29co18/ Uns K94610 / 4J29
Detailed Product Description

Ni29co18/ Uns K94610 (4J29) Kovar Expansion Precision Alloy Pipe / Tube

1.Description:

4J29(China); 29H, 29H-B, Techallony(Russia); Kovar, Rodar, Glasseal 29-17(United States); Nilo K, Telcaseal(Great Britain); KV-1, KV-2, KV-3(Japan); Dilver P0, Dilver P1(France); Vacon 12, Silvar 48(Germany).

4J29 expansion alloy, also known as Kovar alloy, is a Nickel Iron alloy with 29% Nickel, 17% Cobalt and the remaining balance is Iron. The expansion characteristics of Kovar match both borosilicate (or Pyrex) glasses and alumina ceramics, making it one of the most popular controlled expansion alloys for hermetic sealing applications. Kovar is produced to ensure good properties for machining and deep drawing, and is a porosity free product. You'll find Kovar in applications such as power tubes, microwave tubes, transistors, diodes, hybrid packages, and other kinds of scientific instruments.


2. Chemical composition(%):
 


Grade

C

Si

Mn

P

S

Ni

Co

Fe

4J29

0.015

0.12

0.25

0.006

0.005

29.10

17.3

Bal



3. Physical properties

 




Grade



Density(g/cm3)

Thermal expansion coefficient (10-6/°C)


Curie point(°C)


Volume resistivity(μΩ.cm)


Thermal conductivity(W/m. °C)

4J29

8.17

5.0(20~300°C)
5.2(20~450°C

430

46(20°C)

20.3



4. Mechnical properties:
 




Grade


Yield Strength(Mpa)



Tensile Strength



Elongation(%)



Hardness(HV)


4J29

Temper rolled

695

780

5

230

As annealed

315

520

24

148



5.Application:


The alloy is widely used as glass sealing for electronic vacuum devices, such as launching tube, oscillating tube, ignitron, magnetron, transistor, sealing plug, relay, leading wire of integrated circuit, chassis, shell, scaffold and so on.

6.size:


Kovar tubes / Pipes: Φ1.0~80×0.02~20mm


7.Advantages:


1.Pass: ISO9001 certification
2.fine after-sale services
3.small order accepted
4.samples available
5.short delivery time

 

Product Tags: high temperature metal alloys   high temperature wire  
Related Products
Email to this supplier
 
From:
Enter your Email please.
To: Shanghai Tankii Alloy Material Co.,Ltd
Subject:
Message:
Characters Remaining: (80/3000)