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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 Si₃N₄ Material?

Definition, Composition, and Key Properties of Silicon Nitride

Si₃N₄ (silicon nitride) is a high‑performance technical ceramic composed of silicon and nitrogen in a covalent network structure. It exists in several crystal forms, mainly α‑Si₃N₄ and β‑Si₃N₄, with β being the most stable and commonly used for engineering applications.

Property	Typical Value / Description
Chemical formula	Si₃N₄
Molecular weight	140.28 g/mol
Crystal structure	Hexagonal (α and β phases)
Density	3.17–3.30 g/cm³
Hardness	~14–16 GPa (Vickers), Mohs ~9
Melting point	Decomposes ~1900 °C (no true melting)
Thermal expansion	Low (~3.2 × 10⁻⁶/K)
Thermal conductivity	20–30 W/(m·K) (relatively high for a ceramic)
Flexural strength	600–1000 MPa
Fracture toughness	5–7 MPa·m½

Key Characteristics

Exceptional hardness and wear resistance.

Excellent thermal shock resistance due to low thermal expansion and high strength at elevated temperatures.

Oxidation resistant up to ~1200–1300 °C in air.

Lightweight compared with many other high‑performance ceramics.

Good chemical stability in corrosive environments.

Si₃N₄ is produced by direct nitridation of silicon powder, carbothermal reduction of silica in nitrogen, or gas‑phase reactions (e.g., SiCl₄ + NH₃). The resulting powder is shaped and sintered (often with sintering aids like Y₂O₃, MgO) into near‑net or complex components.

2. What Is Si₃N₄ Used For?

Industrial and Engineering Applications of Silicon Nitride

Thanks to its unique combination of properties, Si₃N₄ is used in high‑stress, high‑temperature, and wear‑critical applications across multiple industries.

Industry	Application	Reason for Using Si₃N₄
Automotive	Turbocharger rotors, exhaust valves	High strength, light weight, excellent heat resistance
Bearings	Hybrid and all‑ceramic ball/roller bearings	Low friction, high speed capability, long life
Cutting tools	Inserts for machining hardened steels, cast iron	High hardness, thermal stability, wear resistance
Metalworking	Welding pins, nozzles, dies	Resistance to thermal cycling and corrosion
Electronics	Substrates, spacers, wafer carriers	Electrical insulation, high thermal conductivity
Medical	Orthopedic implants, surgical instruments	Biocompatibility, corrosion resistance, mechanical compatibility
Aerospace	Heat engine components, turbine parts	Weight savings, performance at high temperature

Advantages in Use

Longer service life due to wear and thermal resistance.

Enables higher operating speeds/temperatures than metals in many cases.

Reduces maintenance and downtime in critical machinery.

In medical implants, its bone‑like elastic modulus reduces stress shielding.

3. Is Si₃N₄ an Insulator?

Electrical Properties and Conductivity of Silicon Nitride

Yes, Si₃N₄ is an electrical insulator.

Property	Value / Description
Electrical resistivity	~10¹⁴–10¹⁶ Ω·cm (at room temperature)
Dielectric strength	~10–20 kV/mm
Dielectric constant	~8–10 (depending on frequency and purity)

Explanation

The strong covalent Si–N bonds and lack of free electrons mean no significant electrical conduction occurs under normal conditions.

It behaves as an excellent electrical insulator even at elevated temperatures (retains insulating properties up to ~600–800 °C in certain atmospheres).

At the same time, it has relatively high thermal conductivity for a ceramic, making it valuable where electrical isolation and efficient heat dissipation are both needed (e.g., semiconductor equipment substrates).

Practical Implications

Used as an insulating component in high‑voltage and high‑temperature environments.

Ideal for electronic substrates where heat must be drawn away without creating electrical paths.

Unlike metals, Si₃N₄ will not conduct current, preventing short circuits in sensitive devices.

Conclusion: Si₃N₄ is a good electrical insulator with high thermal conductivity - a rare and useful combination for advanced engineering applications.

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What is the price of ferro silicon nitride today?

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

1. What Is Si₃N₄ Material?​

2. What Is Si₃N₄ Used For?​

3. Is Si₃N₄ an Insulator?​

1. What Is Si₃N₄ Material?

2. What Is Si₃N₄ Used For?

3. Is Si₃N₄ an Insulator?