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Ferro Silicon Nitride

Ferro Silicon Nitride

Mark & model  ：  We can supply 10-100mm ,0-200 mesh blocks, granules and powder according to users’ requirements.

Quality standard  ：  International

H.S.Classification  ：   Metal Articles，Iron & Steel，7202 Ferroalloys

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Product profile

 Ferro silicon Nitride

The main component of Ferro silicon Nitride is Silicon nitride, along with the free-Fe, un-nitride ferro silicon and a small amount of mixture of other ingredients. Refractory grade ferro silicon nitride powde is gray-white (or dark brown) powder, steelmaking grade ferro silicon nitride is gray-white granular material.

Application:

Powdery ferro silicon nitride is mainly used in the blast furnace of the closure work stemming, also used in iron trough feeding or other unshaped refractory.

Granular ferro silicon nitride is mainly used for oriented silicon steel or other steels which is improved the strength by nitrides ( eg, HRB400 rebar).

1. Chemical Composition (%)

Element

Si3N4

Si

N

Fe

Al+Ca

Content

75～80

47～51

30～33

12～16

<2.5

70～75

49～52

28～30

12～16

<2.5

2. Particle size distribution

(1) Powder (%)

Particle size

-45μm

-45μm～-75μm

+75μm～-150μm

+150μm

-75μm

Fine powder

>80

5～1.5

<3

0

95～100

Ordinary powder

70～80

10～20

8～15

<3

85～95

Crude powder

60～70

10～16

10～16

<8

65～80

(2) Granular

Item

Particle size

Percentage

Fine powder

3～5mm

>90

Ordinary powder

3～10mm

>90

Crude powder

10～50mm

>90
Note: Also can supply 10-100mm ,0-200 mesh blocks, tablets, powder according to users’ requirements.

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