High-Quality Ferro Silicon Nitride Refractory Additive

High-quality Ferro Silicon Nitride, also known as Ferrosilicon Nitride or FeSi₃N₄, is a silicon-nitrogen ferroalloy material used in refractory and metallurgical applications. It is commonly selected for blast furnace taphole clay, iron trough castables, refractory ramming materials and selected steelmaking processes.

In refractory production, Ferro Silicon Nitride is valued because it can help improve high-temperature strength, oxidation resistance, slag corrosion resistance and thermal shock stability. For steel plants and refractory producers, the real value of FeSiN is not only its nitrogen content. Particle size, oxygen level, iron content, moisture and batch consistency also affect its performance in practical use.

Zhen An supplies High-Quality Ferro Silicon Nitride in powder, granules and customized particle sizes according to customer requirements. Batch COA can be provided, and third-party inspection is accepted before shipment.

The following specifications are common reference ranges. Final values should be confirmed by batch COA and customer requirements.

For high-performance refractory use, buyers should pay attention to nitrogen content, oxygen level and particle size stability. Excessive oxygen or unstable fineness may affect bonding behavior and high-temperature performance.

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In blast furnace taphole clay, the common problem is erosion and cracking caused by repeated tapping, molten iron flow and thermal shock. Ferro Silicon Nitride can be added to improve high-temperature bonding strength and erosion resistance. The result is more stable taphole clay performance under demanding furnace conditions.

In iron trough castables, slag and molten iron corrosion can gradually damage the working lining. FeSiN helps improve corrosion resistance and hot strength when properly matched with other refractory raw materials. This supports better trough lining stability and reduces premature wear.

In refractory castables, fine Ferro Silicon Nitride powder can improve matrix performance and help build a stronger high-temperature structure. For buyers, stable particle size is important because uneven powder distribution may affect castable consistency.

In steelmaking applications, Ferro Silicon Nitride may be used as a nitrogen-bearing silicon additive in selected processes. The final suitability depends on steel grade, nitrogen target and furnace practice.

Ferro Silicon Nitride should be packed to reduce moisture absorption, contamination and powder loss during transportation.

Common packing options include:

For fine powder grades, moisture-proof packing is recommended, especially for long-distance sea transportation.

Zhen An focuses on stable chemical composition, controlled particle size and export-ready packing for Ferro Silicon Nitride products.

Quality control can include:

1. N content testing
2. Si content testing
3. O, C and moisture control
4. particle size screening
5. packing inspection
6. batch COA
7. third-party inspection before shipment

We accept third-party inspection before shipment, including SGS, BV, Intertek or other internationally recognized inspection agencies.

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ZHEN AN INTERNATIONAL CO.,LIMITED

ZHENAN supplies Ferro Silicon Nitride, ferrosilicon, silicon metal, silicon carbide, silicon calcium alloy, cored wire and other metallurgical and refractory materials.

For High-Quality Ferro Silicon Nitride, Zhen An focuses on stable nitrogen content, suitable particle size, low moisture and reliable export packing. Since FeSiN performance depends on refractory formulation and service conditions, we suggest buyers confirm application details before ordering.

Batch COA can be provided, and third-party inspection is accepted before shipment according to buyer requirements.

Q:What is Ferro Silicon Nitride used for?

A:Ferro Silicon Nitride is mainly used as a refractory additive in blast furnace taphole clay, iron trough castables, ramming materials and furnace lining products. It may also be used as a nitrogen-bearing silicon additive in selected steelmaking applications.

Q:What is the main composition of Ferro Silicon Nitride?

A:Ferro Silicon Nitride usually contains nitrogen, silicon and iron. Common reference ranges include N 28–32%, Si 47–52% and Fe 12–18%, with final values confirmed by batch COA.

Q:Why is Ferro Silicon Nitride used in taphole clay?

A:It is used in taphole clay because it helps improve high-temperature strength, erosion resistance and thermal shock stability under repeated tapping conditions.

Q:What particle size is available for Ferro Silicon Nitride?

A:Common particle sizes include 200 mesh, 325 mesh, 0–1mm and customized sizes. The suitable size depends on refractory formulation and application method.

Q:What is the difference between Ferro Silicon Nitride and ferrosilicon?

A:Ferrosilicon is mainly used as a silicon source and deoxidizer in steelmaking. Ferro Silicon Nitride contains nitrogen-bearing silicon compounds and is more commonly used to improve refractory performance in high-temperature applications.

Q:Can Zhen An provide COA or third-party inspection?

A:Yes. Batch COA can be provided. Zhen An accepts third-party inspection before shipment, including SGS, BV, Intertek or other internationally recognized inspection agencies.

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