Nitrogen-bearing Ferrosilicon FeSiN Nitrided Ferro Silicon Lumps
Used In Refractory And Steel Industry
Ferrosilicon nitride description:
Ferro silicon nitride is a ferroalloy material mainly composed of
Si3N4, accompanied by free iron, non-silicon nitride, and a small
number of other components. Commercial ferrosilicon nitride for
refractory is an off-white or brown powder, while steel-making
ferrosilicon nitride is off-white granular.
Differences between ferro silicon nitride and silicon nitride
The uses of ferrosilicon nitride and silicon nitride are very
similar, but their main components are different. Ferro silicon
nitride is accompanied by free iron, but silicon nitride contains
very little iron.
The price of ferrosilicon nitride is about half of that of silicon
nitride, and the performance of the two is nearly the same.
Specifications of nitrogen-containing ferrosilicon:
|Chemical Composition (%)||Si3N4||Si||N||Fe||Al+Ca|
Properties Of 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. It has good
opening properties, sintering aid, corrosion resistance, and
In all cases, the introduction of ferrosilicon nitride improves the
high-temperature strength and wear resistance of refractory
materials, improves their thermal stability and oxidation
resistance, and reduces the thermal expansion coefficient while
increasing the thermal conductivity. It is also important that
refractories are more resistant to wear from hot metals and slag.
In addition, the refractory material does not shrink when heated
repeatedly. The tap hole mud containing ferrosilicon nitride is
most effective for the tap hole of the closed furnace with a large
Advantages Of Ferrosilicon Nitride
Improve the high-temperature strength and wear resistance of
refractory materials, improve the thermal stability and oxidation
resistance, and reduce the thermal expansion coefficient, while
increasing the thermal conductivity.
Compared with the traditional manganese and chromium alloys used
for alloying, the consumption of ferrosilicon nitride is much less.
The Preparation Of Ferrosilicon Nitride
Ferrosilicon nitride is usually synthesized with ferrosilicon alloy
or monatomic silicon at high temperatures using nitriding
technology. In the synthesis process, the following two factors
greatly affect the synthesis effect.
Ferrosilicon granularity: the relationship between the nitrogen
content of products with different particle sizes and the reaction
The finer the ferrosilicon, the smaller the porosity of the sample,
the larger the specific surface area, and the faster and more
intense the reaction. However, the more severe the sintering
between ferrosilicon particles, the worse the nitrogen diffusion
and the worse the nitriding effect. The specific surface area of
the coarse-grained sample is small, the nitriding reaction is more
stable, and the nitriding becomes more sufficient as the
Nitriding temperature: High-temperature nitriding is more complete
than low-temperature nitriding
OTHER NITRIDES ALLOYS:
Usually applied as an additive in the production of stainless
steel, Special steels, Technical ceramics, Refractories and Tap
Hole, Refractory paints, Industrial paints, Provide thermal and
corrosion resistance. Other nitrided alloys available at Zhenxin
are: Nitrided Ferro Chromium, Nitrided Silicon Manganese, Nitrided
Silicon, Nitrided Ferro Manganese.
Why chose ZX ferroalloy.
1.Specializing in nitrided ferroalloy products more than 20 years.
2. Stable suppliers with guaranteed product quality and delivery
3..Flexible combination of chemical content, satisfy customers'
different requirements for specification.
4.Strictly quality control, accept local third party inspection.
5.Having independent import and export qualification.
Q: Are you trading company or manufacturer ?
A: We are manufacturer of nitrided ferro alloys and alloy cored
wires,established in 2007,which located in Anyang,Henan,China. All
our customers are from domestic or abroad, welcomed to visit our
factory at any time.
Q: What is your advantages?
A: We are manufacturer, and we have professional production and our
own lab, so that we can satiety customer’s requirement and optimize
the chemical composition, quality can be guaranteed. And we have
rich experience in ferro alloy field.
Q: What is your production capacity and delivery date ?
A: 3000MT/month, and normal delivery time is 15 to 20 days after
payment, but it also depends on the quantity of the order.
5. What is your payment method?
We accept T/T(30%deposit,70%before shipment) and L/C at sight..
Q: Can you please send me a sample and is it free of charge sample?
A: Yes, We provide free samples with freight collect. Usually 500 g
of the products in normal specifications if you need, delivery to
your address in about 10-15 days by air express, and the
international shipping cost will be borne by your side.