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Research
Material specification
材料規(guī)格書

Soft Magnetic Alloy

Material introduction: Metal soft magnetic functional materials, mainly used in electro-acoustic devices, motors, sensors, precision instruments, measuring equipment and other functional parts.


Element composition:

Model

C

Si

Mn

Cr

Co

Ni

V

Fe

430L

0.03

0.75

1

17±2

-

0.6

-

Bal.

FeNi50

0.03

1

1

-

-

50±2

-

Bal.

FeCo50

0.03

0.3

1

0.2

50±2

0.5

-

Bal.

FeCo49V2

0.03

0.3

1

0.2

49±2

0.5

2±0.5

Bal.

FeSi3

0.03

1

1

17±1

-

-

-

Bal.


Physical properties:

Properties

Unit

430L

FeNi50

FeCo50

FeCo49V2

FeSi3

Density ρ

g/cm3

>7.60

>7.80

>8.00

>7.80

>7.60

Hardness

Hv

130

105

210

200

210

Tensile strength Rm

MPa

350

450

300

380

460

Yield strength Rp0.2

MPa

200

150

200

220

290

Elongation A10

%

20

32

2

3.5

28

Coercive force Hc

A/m

180.0

12.0

80.0

125.0

35.0

Residual induction Br

T

0.50

0.99

1.09

1.25

1.20

Maximum Polarization Bs

T

1.31

1.40

2.27

1.99

1.60

Permeability μmax

1200

34000

6400

4800

45000


Metallography

  


Comparison of soft magnetic material properties

Models

μmax

Bs

Machinability

Cost

Corrosion resistance

430L

Low

Medium

Good

Low

Medium

FeNi50

High

Medium

Good

Medium

Medium

FeCo50

Medium

High

Bad

High

Bad

FeCo49V2

Medium

High

Medium

High

Bad

FeSi3

High

Medium

Good

Low

Bad

Hysteresis loop




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