Ferro Silicon Nitride_Ferro Silicon Nitride Powder

Metallurgical Material

Ferrosilicon Nitride

Ferrosilicon nitride is an emerging high-quality refractory raw material, which can replace the higher price of silicon nitride and is used in the tap hole mud of large blast furnaces. Ferro silicon nitride has good opening properties, sintering aid, corrosion resistance, and low-cost characteristics.

Powdered ferrosilicon nitride is mainly used in the tap hole of large blast furnaces, and a small amount is used in iron runner materials or other unshaped refractory materials.

Granular ferrosilicon nitride is mainly used in silicon-oriented steel or other steels (such as hrb400 rebar) that use nitrides to improve strength.

Ferrosilicon nitride (fesi3n4) is a refractory additive used in silicon-carbide and alumina-based refractories, such as taphole mixes for blast furnaces. In these roles, it provides resistance against chemical corrosion, physical erosion and thermal shock, so increasing the holding time of the furnace. Ferrosilicon nitride from elkem undergoes careful quality-control, and application support is always on hand.

The price of ferrosilicon nitride is about half of that of silicon nitride, and the performance of the two is nearly the same.

industrial silicon

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
Particle size distribution
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
Granular
Item	Particle size		Percentage
Fine powder	3～5mm		>90
Ordinary powder	3～10mm		>90
Crude powder	10～50mm		>90

Note: It can be customized into 10-100mm or 10-200 mesh in a lump, grain, and powder.

1. Nitrided ferro silicon used as additive for silicon steel produce.

It can make metal have good room temperature and low temperature strength, good corrosion and thermal shock resistance when it mixed in metal melt.

2.Ferrosilicon nitride can be used in large blast furnace without water cannon mud.

Nitrided ferro silicon which has the characteristics of good sintering. Erosion resistance and low cost.

Using ferrosilicon nitride in taphole clay provides resistance against chemical corrosion and physical erosion from the liquid iron, and helps avoid thermal shock, leading to improved open-clog performance, reduced clay consumption, and increased furnace holding time.

3. Nitrided fesi can also used in the smelting of stainless steel, special alloy steel and special refractory material.

Ferrosilicon nitride can also be used in iron troughs or other alumina-based refractory castables, and is also sometimes used to increase the strength, wear resistance and corrosion resistance of advanced ceramics, and (in granular form) as a strength-improving alloying component in certain steels.

1. Nitrided ferro silicon has good corrosion resistance, thermal shock and wear resistance.
2. Different usages for powder and granule shape.
3. Nitrided ferro silicon has similar usability as nitrided silicon, but lower price.
4. Nitrided ferro silicon can provide a stable amount of nitrogen for molten steel

►Zhenan Ferroalloy is located in Anyang City,Henan Province,China.It has 20 years of production experience.High-quality ferrosilicon can be produced according to user requirements.

►Zhenan Ferroalloy have their own metallurgical experts,ferrosilicon chemical composition,particle size and packaging can be customized according to customer requirements.

►The capacity of ferrosilicon is 60000 tons per year,stable supply and timely delivery.

►Strictly quality control,accept the third party inspection SGS,BV,etc.

►Having independent import and export qualifications.

Premium-quality ferrosilicon nitride manufacturer for you：

Zhenan metallurgy has 30 years of experience in silicon nitride production and manufacturing，we source ferrosilicon nitride from a small number of trusted suppliers. Most of our customers request ferrosilicon nitride as 75 µm powder, as this strikes the optimum balance of reactivity and porosity when combined in the final taphole clay. However, we can also accommodate other size specifications, and are working towards providing the larger-grade ferrosilicon nitride used for steel applications.

All our ferrosilicon nitride is quality-checked before it leaves our facility, and from time to time batches are sent off for external chemical testing, to ensure consistent product quality. And if you need guidance on getting the best performance from your ferrosilicon nitride, our experts are always on hand to discuss your application.