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China factory - Zhenan Metallurgy Co., Ltd

Zhenan Metallurgy Co., Ltd

  • China,Anyang ,Henan
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China FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace
China FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace

  1. China FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace
  2. China FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace
  3. China FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace
  4. China FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace

FeSiN Refractory Additive | Stable Size & Nitrogen Content for Blast Furnace

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Payment Terms L/C,T/T,Western Union
Supply Ability 2000MT/per Month
Delivery Time 5-10 work days after received the payment
Packaging Details 1MT big bag or as per customer request
Material FeSi Nitride
Size 10-50mm
Silicon content 70-80%
Iron content 20-30%
Nitrogen content 20-35%
Bulk density 2.5-3.2 g/cm³
Brand Name ZHENAN
Model Number FeSi Nitride
Certification ISO9001
Place of Origin China

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  1. Product Details
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Product Specification

Payment Terms L/C,T/T,Western Union Supply Ability 2000MT/per Month
Delivery Time 5-10 work days after received the payment Packaging Details 1MT big bag or as per customer request
Material FeSi Nitride Size 10-50mm
Silicon content 70-80% Iron content 20-30%
Nitrogen content 20-35% Bulk density 2.5-3.2 g/cm³
Brand Name ZHENAN Model Number FeSi Nitride
Certification ISO9001 Place of Origin China
High Light FeSiN refractory additive for blast furnace ，Ferro silicon alloy with stable nitrogen ，Taphole clay additive for castables
FeSiN Refractory Additive for Blast Furnace Applications
FeSiN (Ferrosilicon Nitride) refractory additive is an engineered material produced through controlled nitridation of ferrosilicon, forming stable Fe-Si-N phases with controlled nitrogen content and defined particle size distribution. Specifically designed for integration into high-temperature refractory mixes, it is widely applied in runner castables and taphole clay formulations to improve structural stability, thermal resistance, and erosion control under continuous molten iron flow.
Critical Requirements for Runner and Taphole Systems
Runner and taphole systems operate under extremely dynamic conditions including high-speed molten iron flow, abrasive slag-metal interaction, repeated thermal shock cycles, and continuous mechanical erosion. Unstable raw materials in these environments lead to uneven mixing behavior, local weak zones in lining structure, irregular sintering performance, and premature refractory failure.
Performance Benefits of FeSiN in Runner Castables
  • Stable Nitride Bonding Phases: Contributes to Si₃N₄-based phases that strengthen internal bonding networks during high-temperature exposure
  • Improved Structural Densification: Reduces porosity in castable systems, limiting pathways for slag penetration
  • Enhanced Thermal Shock Tolerance: Stable nitride phases improve resistance to rapid heating and cooling cycles
  • Superior Wear Resistance: Strengthens the matrix against continuous molten iron abrasion under flow conditions
Importance of Particle Size Consistency
Particle size stability is critical for refractory performance as it directly affects mixing behavior and microstructure formation. Consistent sizing ensures uniform dispersion in castable systems, stable packing density during mixing, predictable hydration and setting behavior, and reduced formation of localized weak zones.
Impact of Size Distribution on Performance
Particle size distribution determines material behavior during processing and service. Fine particles improve bonding and matrix filling, while coarse particles enhance structural skeleton strength. Balanced distribution ensures mechanical stability, while unstable distribution leads to non-uniform density, reduced thermal shock resistance, and increased risk of crack propagation.
Nitrogen Stability Significance
Nitrogen is the functional element responsible for high-temperature performance. Stable nitrogen content ensures consistent formation of nitride bonding phases, predictable sintering behavior, uniform thermal stability across batches, and reliable slag resistance performance. Fluctuating nitrogen levels directly lead to inconsistent refractory behavior.
Technical Specifications
Parameter Specification
Product Name FeSiN Refractory Additive
Chemical System Fe-Si-N
Nitrogen Content 25-35%
Particle Size Stable / controlled 0-3 mm
Primary Function Bonding / wear resistance / structural reinforcement
Appearance Grey granular solid
Application Runner castables / taphole clay
Performance Comparison
Parameter FeSiN Additive Conventional Silica-Based Additives
Particle Size Stability High Variable
Nitrogen Stability Controlled None
Bonding Efficiency Strong Moderate
Thermal Shock Resistance Improved Limited
Slag Resistance High Medium
Industrial Consistency High Inconsistent
Packaging and Delivery
ZhenAn supplies FeSiN refractory additives in controlled granular form suitable for industrial mixing and furnace applications. Standard packaging includes 25kg moisture-resistant sealed bags, 1MT jumbo bags, and reinforced export pallet packaging. Each shipment includes comprehensive documentation: Chemical Composition Report (COA), nitrogen content certification, particle size distribution report, and quality consistency documentation.
Frequently Asked Questions
Why is particle size consistency important in FeSiN additives?
Because it ensures uniform mixing and stable refractory structure formation.
How does size distribution affect performance?
It controls packing density and structural uniformity.
Can unstable particle size reduce bonding efficiency?
Yes, it creates voids and weak zones in the matrix.
Why is nitrogen stability important?
Because it ensures consistent formation of nitride bonding phases.
How does FeSiN improve runner castables?
It enhances strength, wear resistance, and thermal stability.
What is the role of controlled sizing in taphole clay?
It ensures stable installation and uniform performance.
Can FeSiN improve flowability?
Yes, by improving particle packing behavior.
Why do steel plants require stable quality?
To ensure predictable furnace operation and reduce downtime.
Why Choose ZhenAn FeSiN
ZhenAn provides FeSiN refractory additives engineered for stable nitrogen content, controlled particle size, and reliable performance in blast furnace runner castables and taphole clay systems. Our production control ensures consistent industrial behavior across batches, supporting predictable furnace operation and extended refractory service life.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Seller

  • Year Established:

    2019

  • Total Annual:

    10000000-80000000

  • Employee Number:

    10~50

  • Ecer Certification：

    Verified Supplier

ZhenAn is an enterprise specializing in Metallurgical & Refractory products , integrating production, processing, sales and importing and exporting business. We are focused on building a dedicated team of professionals across the globe. At ZhenAn, we are committed to provide complete solutions ... ZhenAn is an enterprise specializing in Metallurgical & Refractory products , integrating production, processing, sales and importing and exporting business. We are focused on building a dedicated team of professionals across the globe. At ZhenAn, we are committed to provide complete solutions ...

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  • Zhenan Metallurgy Co., Ltd
  • Huafu Commercial Center, Wenfeng District, Anyang City, Henan Province, China
  • https://www.ferrosilicon-alloy.com/

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