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Ferrosilicon Nitride

Ferrosilicon Nitride
Ferrosilicon Nitride
Product Code : 11
Product Description

Ferrosilicon nitride takes Si3N4 as essential component, accompanying with free iron, non-nitrided ferrosilicon and other mixture. White commercial ferrosilicon nitride for fire retardance is grey white (or dark brown) powder, and ferrosilicon nitride for steelmaking is grey white grains.

Applications :

  • Powder ferrosilicon nitride is mainly used in plugging stemming of blast furnace, few in iron runner material or other amorphous refractories. With increasing requirement on quality of refractories, more and more refractory products make use of ferrosilicon nitride or silicon nitride.
  • Grain ferrosilicon nitride is mostly suitable for oriented silicon steel or steels which are increased strength with nitrides (HRB400 steel bar for example)

Technical Specification :

Chemical Composition (%)

Si3N4

Si

N

Fe

Al+Ca

Element Content

75~80

47~51

30~33

12~16

<2.5

70~75

49~52

28~30

12~16

<2.5

*. Granularity Distribution

(1) Powder Product (%)

Grain diameter

-45 µm

-45µm~-75µm

+75µm~-150µm

+150µm~-75µm


Fine Powder

>80

5~1.5

<3



Common Powder

70~80

10~20

8~15

<3


Coarse Powder

60~70

10~16

10~16

<8


(2) Granular Product


Grain Diameter

Percentage

Fine Grain

3~5 mm

>90

Common Grain

3~10mm

>90

Coarse Grain

10~50mm

>90

Note : It can be customized into 10-100mm or 0-20 mesh in lump, grain and powder.


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