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4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
Specifications
Brand Name :
JX
Model Number :
4j29 Kovar Alloy Bar
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 :
Iron Nickel Cobalt Alloy / Kovar Alloy bar
Material :
Feni Alloy
Carbon Content :
low
Transport Package :
wooden case
Shape :
round bar
Condition :
soft
Surface :
Bright
Origin :
China
Description

Product Description

4J29 Kovar Alloy Bar is also known as Kovar alloy. The alloy has a linear expansion coefficient similar to that of silicon boron hard glass at 20-450°C, a higher Curie point, and good low-temperature structural stability.

Similar grades:
29HК Kovar Nilo K KV-1 Dilver P0 Vacon 12
29HК-BИ Rodar KV-2
Techallony Glasseal 29-17 Telcaseal KV-3 Dilver P1 Silvar 48



Chemical composition:
C≤0.03%
Mn≤0.50%
Si≤0.30%
P≤0.020%
S≤0.020%
Cu≤0.20%
Cr≤0.20%
Mo≤0.20%
Ni=28.5~29.5%
Co=16.8~17.8%
Fe=rest

Grade : Kovar nickel-cobalt ferrous alloy/ 29HK/ 4J29

Classification : the alloy of expansion characteristics

Kovar Alloy Bar Application: Kovar (trademark of CRS Holdings, inc., Delaware[1]) is a nickel-cobalt ferrous alloy compositionally identical to Fernico 1, designed to be compatible with the thermal expansion characteristics of borosilicate glass (~5 × 10?6 /K between 30 and 200 °C, to ~10 × 10?6 /K at 800 °C) in order to allow direct mechanical connections over a range of temperatures. It finds application in electroplated conductors entering glass envelopes of electronic parts such as vacuum tubes (valves), X-ray and microwave tubes and some lightbulbs.

Kovar Alloy Bar Chemical Composition in % Kovar


Ni
28,5-29,5%
Fe
51,14-54,5%
C
0.03%
Si
0.3%
Mn
0,4 %
S
o 0.015%

P
0.015%
o
17-18%
Ti
0.1%
Al
0.2%
Cu
0.2%
Cr
0,1 %

Kovar Alloy Bar picture:

4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface

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4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface

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Product Detail
Brand Name :
JX
Model Number :
4j29 Kovar Alloy Bar
Certification :
ISO
Place of Origin :
china
MOQ :
100kgs
Price :
Negotiable
Contact Supplier
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface
4j29 Kovar Alloy Round Bar Iron Nickel Cobalt Bright Surface

JINXING MATECH CO LTD

Site Member
6 Years
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Seller, Other
Main Products :
Zirconium Bar, Tungsten Copper Alloy, Tungsten Heavy Alloy
Total Annual :
5,000,000-10,000,000
Employee Number :
10~25
Certification Level :
Site Member
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