Ferro Chrome (FeCr)

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Ferro Chrome (FeCr)

Ferrochrome, or Ferrochromium (FeCr) is a type of ferroalloy, that is, an alloy between chromium and iron, generally containing 50% to 70% chromium. It is produced in an energy intensive process in electric furnaces from chrome ore, iron ore and coal. FeCr is used in the production of stainless steel, special steel and castings.Ferrochrome is divided up in three main products which are Low Carbon FeCr, Medium Carbon FeCr and High Carbon FeCr.

Physical Properties

General

The melting point and density of ferrochrome depends on its chrome and carbon content

Abrasion

good resistance to abrasion

Corrosion

good resistance to corrosion

Gravity

high specific gravity

Magnetism

high magnetism

 

High carbon

Medium carbon

Low carbon

DensityFeCr70

6,7-7,1 g/cm³

0,242-0,257 Ib/in³

7,1-7,3 g/cm³

0,257-0,264 Ib/in³

7,3-7,35 g/cm³

0,264-0,266 Ib/in³

Melting

pointFeCr70

1350-1650 °C

2462-3002 °F

1360-1600 °C

2480-2912 °F

1580-1690 °C

2876-3074 °F

The DIN standard of Ferrochromium

Designation

Material name

 

Composition, as percentages by mass

Cr1)

C

N

P

S

Si

 

 

 

Ferrochromium

 

 

 

Low carbon grade

FeCr70C005

Min.

55

-

-

-

-

-

Max.

75

0,05

0,05

0,03

0,01

1,5

FeCr90C005

Min.

75

-

-

-

-

-

Max.

95

0,05

0,05

0,03

0,01

1,5

FeCr70C010

Min.

55

-

-

-

-

-

Max.

75

0,1

0,05

0,03

0,01

1,5

 

 

FeCr70C010N

Min.

60

0,03

3

-

-

-

Max.

70

0,1

4

0,03

0,01

1,5

FeCr70C010H N

Min.

60

0,03

4

-

-

-

Max.

70

0,1

10

0,03

0,01

1,5

FeCr70C050

Min.

55

-

-

-

-

-

Max.

75

0,5

0,05

0,03

0,01

1,5

 

 

Medium carbon grade

FeCr70C10

Min.

55

0,5

-

-

-

-

Max.

75

1

-

0,03

0,05

1,5

FeCr70C20

Min.

55

1

-

-

-

-

Max.

75

2

-

0,03

0,05

1,5

 

 

High carbon grade

FeCr70C80

Min.

45

6

-

-

-

2

Max.

70

8

-

0,03

0,05

5

FeCr70C95

Min.

65

4

-

-

-

-

Max.

70

92)

-

0,03

0,05

2