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Approximate Brand:

GB/T

AISI/ASTM

1J79

Alloy4

 

Chemical constituents of 1J79:

Brand

%

Ni

Fe

C

Mn

Si

P 

S 

Cu

Mo

4J36

min

785

allowance


0.6

 03




3.8

max

805

0.03

1.1

0.5

0.02

0.02

0.02

4.1

 

Physical properties of 1J79:

density

8.6 g/cm³

Curie point

450

 

Mechanical properties of 1J79 alloy at room temperature:

Brand

Varieties

Magnetic properties

Initial permeability

      μOmH/m

Maximum permeability

    μm mH/m

Coercivity

      Hc  A/m

Saturated magnetic induction

            BsT

1J79

Cold rolled strip

≥31

≥250

≤1.2

0.75

Barbed wire board

≥25

≥125

≤2.4

0.75

 

Characteristics and Application of 1J79:

Various transformers, transformers, magnetic amplifiers, choke coil cores and magnetic shielding working in weak magnetic field with high initial permeability.


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