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UNS K94610 Kovar Plate 4J29 Precision Alloy

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Negotiable MOQ: 50 Kilograms (Price negotiable depending on order volume and customization)
Key Specifications
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Place of Origin:
Shanghai, China
Type:
Nickel Plate
Application:
Commonly used in aircraft factory
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Shanghai Chonray Precision Alloy Co., Ltd.
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Port of Shipment:
Shanghai
Delivery Detail:
Delivery time depends on order quantity.

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Place of Origin Shanghai, China
Type Nickel Plate
Application Commonly used in aircraft factory
Grade Fe-Ni-Co 4J29 Kovar alloy plate, Fe-Ni-Co 4J29 Kovar alloy plate
Ni (Min) 28.5
Powder Or Not Not Powder
Model Number 4J29 Kovar alloy plate
Brand Name Chonray

 

 

 

Product Description

The picture of precision alloy.

 UNS K94610 kovar plate 4J29 precision alloy

 

4J29

 

 

 

Precision alloy 4J29 is a Fe-Ni-Co alloy,and it has similar liner expansion coefficient with hard borosilicate glass under the temperature of 20-450℃, with high Curie point and good low-temperature stability.4J29 has tense oxide film and can be well wetted by the glass.

It is suitable for mercury discharge instrument because it doesn’t react with mercury. 

4J29 alloy is the main material of sealing parts in electric vacuum devices.

 

 

 

Chemistry (%)

 

 

Ni

Co

C

Fe

Mn

Si

Mo

Cr

Cu

P

S

MIN

28.5

16.8

-

-

-

-

-

-

-

-

-

MAX

29.5

17.8

0.03

Balance

0.5

0.3

0.2

0.2

0.2

0.02

0.02

 

 

 

Alloy Form

 

4J29 wire, strip, plate, pipe and rod

 

 

 

Chinese Grade

 

4J29

 

 

 

Common Trade Name

 

Russia

USA

U.K.

Japan

France

Germany

29HK

Kovar

Nilo K

KV-1

Dilver P0

Vacon 12

29HK-B

Rodar

Techallony Glasseal 29-17

Telcaseal

KV-2

KV-3

Dilver P1

Silvar 48

 

 

 

Features

 

  • High Curie point 
  • Good low-temperature stability
  • Tense oxide film, and can be well wetted by the glass
  • No reaction with mercury
  • Good corrosion resistance in air, fresh water and sea water

 

Applications

 

Commonly used in aircraft factory, main material for glass sealing in electric vacuum devices, such as glass sealing for launch tube, oscillating tube, igniting tube, magnetron, transistors, sealing plugs, relays, IC lead, chassis, housings, brackets, etc.

 

 

 

Physical Properties

 

  • Melting temperature: 1450℃
  • Specific heat capacity: 440J/(kg•℃) at 0℃
  • Resistivity:ρ=0.48μΩ·m
  • Curie point: Tc=430℃

 

 

 

Thermal Conductivity

 

θ/℃

100

200

300

400

500

λ/(W/(m·℃))

20.6

21.5

22.7

23.7

25.4

 

 

 

Temperature Coefficient of resistance

 

Temperature/℃

20~50

20~85

20~100

20~200

20~300

20~400

αR/10-3℃-1

3.7

3.7

3.9

3.9

3.7

3.3

 

 

 

Magnetic Properties

 

H/(A/m)

B/T

H/(A/m)

B/T

H/(A/m)

B/T

8

0.9×10-2

80

0.35

2000

1.47

16

2.1×10-2

160

0.81

4000

1.61

24

3.6×10-2

400

1.17

 

 

40

8.3×10-2

800

1.34

 

 

 

At 4000A/m, remanence Br=0.98T, coercivity Hc=68.8A/m

 

 

 

Mechanical Properties

 

 

 

Hardness of Deep Drawing Strip

 

State

δ/mm

             HV

Deep drawing

>2.5

≤170

≤2.5

≤165

 

 

 

Tensile Strength of Wire and Strip

 

State number

State

σb/MPa

 

 

Wire

Strip

S

Soft state

<585

<570

1/4H

1/4 hard state

585~725

520~630

1/2H

1/2 hard state

655~795

590~700

3/4H

3/4 hard state

725~860

600~770

H

Hard state

>850

>700

 

 

 

  

More products for you to choose.

 

UNS K94610 kovar plate 4J29 precision alloy 

UNS K94610 kovar plate 4J29 precision alloy

 

Company Information

 

Shanghai Chonray Precision Alloy Co.,Ltd was founded in Year 2000, comprised of two major business sectors: Electric heating elements for industrial furnaces & special alloys. We have a manufacturing base in Shanghai City, specialized in electric heating elements for industrial furnaces. The other manufacturing base in Jiangsu Province is specialized in research and production of special alloys, including high resistance alloys, superalloys, corrosion resistant alloys, precision alloys, welding wires and so on. Based on 15 years experience of electric heating elements and 23 years experience of special alloys, Chonray has established long-term and strategic cooperation with many well-known companies abroad and at home.
Strictly implementing the quality management system ISO9001: 2008 and environment management system ISO14001, Chonray ensures the quality control with the solid technical force and advanced testing and analysis equipment .Our products are widely used in various fields, such as aerospace,chemical processing,medical,glass,oil and gas,power generation, and thermal process.
Guided by the philosophy of being professional, ethical and lawful ,environmental and social responsible, Chonray aims to provide best quality electric heating elements for industrial furnace and special alloys to customers worldwide. Chonray professional team is fully qualified to satisfy your sales, engineering and logistics requirements. We warmly welcome customers to visit our company.
UNS K94610 kovar plate 4J29 precision alloy

 

 Production line

 

 

UNS K94610 kovar plate 4J29 precision alloyUNS K94610 kovar plate 4J29 precision alloy 

 

Testing Equipment

UNS K94610 kovar plate 4J29 precision alloyUNS K94610 kovar plate 4J29 precision alloy

 

 

 

Certification

UNS K94610 kovar plate 4J29 precision alloy

 

Packing picture:

 

UNS K94610 kovar plate 4J29 precision alloy 

Our market

UNS K94610 kovar plate 4J29 precision alloy

UNS K94610 kovar plate 4J29 precision alloy

 

Our advantages and services

 

     

a. Our advantage

 

 

 

We can provide high quality material, excellent design, precise manufacturing,complete specifications, considerate and integrity serivices.

 

 

 

We can provide all kinds of electric heating alloy material and elements, including customized products.

 

 

 

We can provide a complete solution for you.

 

 

 

OEM service can be provided.

 

 

 

b. Technical services we can provide:

 

 

 

 Product selection

 

 

 

 Process optimization

 

 

 

 New product development

UNS K94610 kovar plate 4J29 precision alloy

                             

Contact information:

 

 

 UNS K94610 kovar plate 4J29 precision alloy

 

 

 

 

 

 

 
 
 

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Shanghai Chonray Precision Alloy Co., Ltd.
Business Type
Manufacturer
Year Established
2012
Factory Size
3,000-5,000 square meters
Total Employees
51 - 100 People
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