What is Ferro Silicon Nitride used for?

What is the price of ferro silicon nitride today?

Here's a table summarizing today's (September 2024) China export prices of ferro silicon nitride (FSN), including pricing terms, product grades, destination markets, and key influencing factors. All prices are based on current market inquiries, exchange rates (USD/CNY ≈ 7.3), and typical trade conditions.

Ferro Silicon Nitride (FSN) – China Export Prices Today (September 2024)

No.	Destination / Region	Grade / Specification	FOB China Port (USD/MT)	CIF Destination Port (USD/MT)	Typical Port of Shipment	Key Influences Today
1	India	Ordinary (Si₃N₄ ≈ 30%, 100 mesh)	1,100 – 1,300	1,250 – 1,450	Tianjin / Qingdao	10–15% import duty; peak steel demand post-monsoon
1	India	High Purity (Si₃N₄ ≥ 50%, 200 mesh)	1,800 – 2,200	1,950 – 2,350	Tianjin / Qingdao	Anti-dumping risk for high purity; strong local demand
2	Vietnam	Ordinary	1,050 – 1,250	1,200 – 1,400	Fangcheng / Shanghai	China–ASEAN FTA = 0% tariff; rising steel capacity transfer
2	Vietnam	High Purity	1,700 – 2,100	1,850 – 2,250	Fangcheng / Shanghai	Short shipping distance keeps freight low ($50–80/MT)
3	Germany	Ordinary	1,300 – 1,500	1,450 – 1,650	Shanghai / Ningbo	EU anti-dumping 5–10% on high-purity; CE needed
3	Germany	High Purity	2,200 – 2,600	2,350 – 2,750	Shanghai / Ningbo	Premium refractories demand; higher logistics cost
4	Italy	Ordinary	1,320 – 1,520	1,470 – 1,670	Shanghai / Ningbo	Euro strength pushes up price; CE mark mandatory
4	Italy	High Purity	2,250 – 2,650	2,400 – 2,800	Shanghai / Ningbo	High-end metallurgy buyers prefer high purity
5	USA	Ordinary	1,400 – 1,600	1,550 – 1,750	Shanghai / Lianyungang	ASTM A144 compliance; no extra tariff; long freight
5	USA	High Purity	2,400 – 2,800	2,550 – 2,950	Shanghai / Lianyungang	EV battery sector demand; ocean freight $200–300/MT
6	Canada	Ordinary	1,420 – 1,620	1,570 – 1,770	Qingdao / Shanghai	Winter freight surcharge +10–15%; clean raw material need
6	Canada	High Purity	2,450 – 2,850	2,600 – 3,000	Qingdao / Shanghai	Refractory upgrade driven by environmental rules
7	Saudi Arabia	Ordinary	1,200 – 1,400	1,350 – 1,550	Qingdao / Shanghai	Vision 2030 infra projects; zero local production
7	Saudi Arabia	High Purity	2,000 – 2,400	2,150 – 2,550	Qingdao / Shanghai	Import-dependent market; stable demand
8	UAE	Ordinary	1,180 – 1,380	1,330 – 1,530	Shanghai / Ningbo	Re-export hub; GCC tariff-free among members
8	UAE	High Purity	1,950 – 2,350	2,100 – 2,500	Shanghai / Ningbo	Prices affected by regional re-export demand
9	Brazil	Ordinary	1,250 – 1,450	1,400 – 1,600	Shanghai / Shenzhen	BRL weakness increases landed cost; iron ore industry use
9	Brazil	High Purity	2,100 – 2,500	2,250 – 2,650	Shanghai / Shenzhen	Mining sector refractories; freight $120–180/MT
10	Turkey	Ordinary	1,280 – 1,480	1,430 – 1,630	Lianyungang / Shanghai	Steel output #2 in Europe; transit role for Eurasia
10	Turkey	High Purity	2,150 – 2,550	2,300 – 2,700	Lianyungang / Shanghai	Black Sea shipping risks affect freight stability

1. What Is Ferro Silicon Nitride Used For?

Key Metallurgical Applications of FeSiN in Iron and Steel Production

Ferro Silicon Nitride (FeSiN) is a ferroalloy containing silicon, iron, and nitrogen - typically Si 20–40 %, Fe balance, N 15–25 %. It is used mainly in foundry and steelmaking processes for its dual ability to supply silicon and nitrogen, and to modify graphite/alloy structures.

Application	Function	Benefits
Ductile iron (nodular cast iron) production	Nodulizer (alternative or complement to Mg/Rare Earths)	Promotes spherical graphite → higher ductility, strength, impact resistance
Cast iron inoculation	Nucleating agent for graphite	Reduces chill, refines grain, improves machinability
Steel microalloying	Adds Si and N; N forms nitrides with Al/V/Ti	Grain refinement, precipitation strengthening, higher strength
Specialty alloy production	Supplies controlled nitrogen	Improves creep resistance, hardenability

Key Points

In ductile iron, FeSiN helps form uniform graphite nodules, reducing section sensitivity and improving mechanical consistency.

In steel, nitrogen combines with strong nitride formers (Al, V, Ti) to pin grain boundaries, enhancing strength without large alloy additions.

Compared to Ferro Silicon Magnesium, FeSiN can be cheaper and generates less slag/oxide, leading to cleaner metal.

Typically added in late treatment stage (ladle or metal stream) in controlled particle size to manage dissolution rate.

Its use leads to better cast iron quality, higher steel performance, and process flexibility in metallurgy.

2. What Is Ferro Silicon Nitride? Uses, How It Works & Top Companies

Definition, Mechanism, Applications, and Global Producers

Definition

Ferro Silicon Nitride is a silicon–iron–nitrogen alloy produced by nitriding ferrosilicon or by direct reaction of silicon/iron sources with nitrogen. It appears as gray metallic granules or powder.

How It Works

In cast iron: Nitrogen modifies graphite nucleation sites and aids in forming spheroidal graphite when combined with Mg or rare earths.

In steel: Nitrogen atoms occupy interstitial sites or form fine nitrides (AlN, VN, TiN) that hinder grain growth → finer microstructure → higher strength and toughness.

Si role: Provides deoxidation and solid-solution strengthening.

Uses Summary

Sector	Role	Outcome
Foundry	Nodulizer/inoculant	Ductile iron with high elongation & strength
Steel	Microalloying element	Precipitation-hardened, fine-grained steel
Special alloys	Controlled N source	Enhanced creep & wear resistance

Top Producing Companies (Global)

Company	Location	Notes
Anyang Wanhua Metal Materials	China	Major FeSiN supplier, wide grade range
Hengxing Metallurgy	China	Specializes in foundry alloys
Elkem	Norway	Advanced ferroalloy producer, R&D in nitrided products
DMS Powders	South Africa	Supplies FeSiN for foundry and welding
Westbrook Resources Ltd	UK	Trades niche ferroalloys including FeSiN

These companies offer standard and custom FeSiN grades for metallurgical and foundry clients worldwide.

3. Difference Between Ferro Silicon Nitride and Silicon Nitride

Comparing an Alloy with a Ceramic Compound

Parameter	Ferro Silicon Nitride (FeSiN)	Silicon Nitride (Si₃N₄)
Nature	Metallic ferroalloy (Si, Fe, N)	Ceramic compound (non-metallic)
Composition	Si 20–40 %, Fe balance, N 15–25 %	Si₃N₄ (exact stoichiometry)
Form	Granules, powder, lumps	Powder, sintered ceramic, machined parts
Melting/Decomposition	Decomposes at high temp (>1600 °C)	Extremely high thermal stability (refractory ceramic)
Primary Use	Metallurgical alloying, nodulizer in iron/steel	Engineering ceramics: bearings, cutting tools, engine parts
Conductivity	Metallic (electrical & thermal conductor)	Electrical insulator, good thermal conductor
Production	Nitriding of ferrosilicon or SiO₂+C+Fe+N₂ route	Direct reaction of Si powder with N₂ at high T/P or carbothermal reduction

Key Differences

Function: FeSiN is used to add Si and N to metals in molten state; Si₃N₄ is used as a finished ceramic component for high‑temperature, wear‑resistant applications.

Processing: FeSiN made in metallurgical furnaces; Si₃N₄ requires precise ceramic sintering.

Properties: FeSiN behaves as a metal alloy (malleable when molten, brittle when solid); Si₃N₄ is hard, brittle, and non‑reactive in molten metals.

Conclusion: Ferro Silicon Nitride is a metallurgical alloy for modifying metal properties; Silicon Nitride is a technical ceramic for structural and wear applications. They share nitrogen and silicon but differ completely in form, use, and properties.

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