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4J29-strip
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Kovar strip  4J29 strip

Kovar strip  4J29 strip

 Kovar-strip.jpg_350x3504J29-strip

Chemcial composition

  

4J29 F15

GB/T

AISI/ASTM

JIS

W.Nr

4J29

F15

EMAS-1001

1.3912

 

4J29 Chemical composition:

Alloy

%

Ni

Cr

Fe

Co

Cu

C

Mn

Si

P

S

Mo

4J29

Min

28.5

 

Bal

16.8

 

 

 

 

 

 

 

Max

29.5

0.2

17.8

0.20

0.03

0.50

0.30

0.02

0.02

0.20

 

Average coefficient of linear expansion(10-6°C:

20~100°C

20~300°C

20~400°C

20~450°C

20~500°C

20~530°C

20~600°C

——

——

4.6~5.2

5.1~5.5

——

——

——

 

Alloy

%

Ni

Mo

Cu

C

Si

Mn

P

S

1J79

Min.

78.5

3.8

   

0.3

0.6

   

Max.

80

4.1

0.2

0.03

0.5

1.1

0.02

0.02

 

 

1J79 Phycial propertities:

Denity

8.6 g/cm³

Melting Point

450°C

 

1J79 minimum mechanical properties in the room temperature

Alloy

Shape

Propertities

μO(mH/m)

μm (mH/m)

Hc (A/m)

   Bs(T)

1J79

Cold Rolled strip

≥31

≥250

≤1.2

0.75

Bar, wire, plate

≥25

≥125

≤2.4

0.75

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