What is the price of silicon metal 3303?China Metal Silicon spot price
| China's export price of industrial silicon on June 2 //Up-to-Date Silicon Metal Pricing Per Kg | |||
| Brand | Tax-inclusive price | rise and fall | Notes (USD/ton) |
| 421 | 1450-1500 | -- | Huangpu Port, FOB |
| 2202 | 2000-2100 | -- | Huangpu Port, FOB |
| 3303 | 1490-1510 | -- | Huangpu Port, FOB |
| 441 | 1380-1430 | -- | Huangpu Port, FOB |
| 553 | 1330-1360 | -- | Huangpu Port, FOB |
What is Metallurgical Grade Silicon Metal?
Looking for a High-Purity Silicon Source for Alloy Production?
Metallurgical Grade Silicon Metal (MG-Si) | Si 98%–99.5% | Industrial Alloy Base Material
✔ Silicon Content: 98.0% – 99.5%
✔ Available Sizes: 0–10mm, 10–50mm, 50–100mm, Custom Lump
✔ High Purity Industrial Silicon Source
✔ Used in Aluminum Alloys, Steelmaking, and Chemical Industry
✔ Stable Chemical Composition for Industrial Processing
✔ Bulk Supply for Global Metallurgical Applications
Metallurgical Grade Silicon Metal (MG-Si) is a high-purity industrial silicon material produced by reducing silica in electric arc furnaces using carbon materials. It is the foundational raw material for aluminum alloys, silicones, and high-performance metallurgical processes.
What is Metallurgical Grade Silicon Metal and How Is It Produced?
Metallurgical grade silicon metal is produced in submerged arc furnaces where high-purity quartz (SiO₂) is reduced using carbon sources such as coke, coal, or wood chips at temperatures above 1900°C.
The main reaction is:
SiO₂ + 2C → Si + 2CO
This process produces silicon metal with controlled impurity levels, which is then crushed, sorted, and packaged according to industrial requirements.
MG-Si is considered the first industrial stage silicon product, serving as the base material for further purification into chemical or electronic-grade silicon.
What Are the Typical Specifications of Metallurgical Grade Silicon Metal?
| Item | Specification |
|---|---|
| Silicon (Si) | 98.0% – 99.5% |
| Iron (Fe) | ≤0.4% |
| Aluminum (Al) | ≤0.3% |
| Calcium (Ca) | ≤0.1% |
| Carbon (C) | ≤0.1% |
| Phosphorus (P) | ≤0.03% |
| Sulfur (S) | ≤0.02% |
| Size | 0–10mm / 10–50mm / 50–100mm |
| Appearance | Silver grey metallic lump |
Why Is Metallurgical Grade Silicon Metal Important in Industry?
MG-Si plays a critical role as a primary alloying element and reducing agent.
Aluminum Alloy Production
Silicon improves hardness, casting properties, and corrosion resistance in aluminum alloys used in automotive, aerospace, and construction industries.
Steelmaking Applications
It is used as a deoxidizer and alloying agent to improve steel strength and oxidation resistance.
Chemical Industry Feedstock
MG-Si is further processed into siloxanes and silicones used in adhesives, sealants, and polymers.
Energy and Solar Supply Chain
It is the starting material for solar-grade silicon purification processes.
How Does Metallurgical Grade Silicon Differ from Chemical and Electronic Grade Silicon?
MG-Si vs Chemical Grade Silicon vs Electronic Grade Silicon
| Property | MG-Si | Chemical Grade Si | Electronic Grade Si |
|---|---|---|---|
| Purity | 98–99.5% | 99.5–99.9% | 99.9999%+ |
| Production Cost | Low | Medium | Very High |
| Application | Metallurgy | Silicones | Semiconductors |
| Processing Level | Basic | Refined | Ultra-purified |
| Energy Requirement | High furnace energy | Medium | Extremely high |
Key Difference
MG-Si is not designed for electronics but for large-scale industrial alloying and chemical feedstock use, where cost efficiency is more important than ultra-high purity.
Why Is MG-Si Widely Used in Aluminum and Steel Industries?
Metallurgical grade silicon provides an optimal balance between cost and metallurgical performance.
In aluminum alloys, silicon improves:
Fluidity during casting
Mechanical strength
Wear resistance
Thermal stability
In steelmaking, it functions as:
Deoxidizer
Alloy stabilizer
Grain refinement enhancer
Its availability in bulk quantities makes it ideal for high-volume industrial consumption.
What Are the Main Applications of Metallurgical Grade Silicon Metal?
MG-Si is used in multiple industries:
Aluminum Alloy Industry
Used in automotive engine blocks, wheels, and structural castings.
Steel Manufacturing
Improves strength, oxidation resistance, and cleanliness.
Silicone Industry
Raw material for siloxane and silicone production.
Solar Industry
Intermediate feedstock for polysilicon production.
Chemical Manufacturing
Used in reducing agents and specialty compounds.
What Impurities Are Common in MG-Si?
Typical impurities include:
Iron (Fe)
Aluminum (Al)
Calcium (Ca)
Carbon (C)
Phosphorus (P)
Trace elements from quartz and reductants
These impurities are controlled depending on the end-use application.
What Factors Affect the Price and Quality of Silicon Metal?
Several factors influence MG-Si market value:
Raw Material Quality
High-purity quartz increases silicon yield and reduces impurities.
Furnace Efficiency
Stable arc furnace operation improves consistency.
Impurity Control
Lower Fe and Al levels increase product value.
Particle Size
Uniform sizing improves melting efficiency in alloy production.
Energy Cost
Electricity cost is a major component of production pricing.
How Does Silicon Metal Improve Alloy Performance?
Silicon strengthens alloys by:
Increasing hardness in aluminum alloys
Improving corrosion resistance
Enhancing high-temperature stability
Reducing shrinkage during casting
Its role is essential in modern lightweight and high-strength materials.
Why MG-Si Is a Core Industrial Material
Metallurgical Grade Silicon Metal is a foundational material in modern metallurgy and chemical production. It serves as the base raw material for aluminum alloys, steelmaking, and silicon-based chemical industries.
Its combination of cost efficiency, stable composition, and industrial versatility makes it one of the most important bulk non-ferrous materials in global supply chains.
FAQ
What is metallurgical grade silicon metal and how is it produced?
It is industrial silicon produced by carbothermic reduction of silica in electric arc furnaces.
Quartz is reduced at high temperatures using carbon materials to produce silicon metal with 98–99.5% purity.
What is the typical silicon content range in MG-Si?
MG-Si typically contains 98% to 99.5% silicon.
The exact range depends on furnace control and impurity levels.
What are the main applications of MG-Si?
It is mainly used in aluminum alloys, steelmaking, and chemical production.
It serves as both an alloying element and a chemical feedstock.
How is MG-Si different from electronic grade silicon?
MG-Si has much lower purity and is used for industrial metallurgy.
Electronic grade silicon requires ultra-high purity for semiconductor applications.
Why is MG-Si widely used in aluminum alloys?
Because it improves casting and mechanical properties at low cost.
Silicon enhances fluidity, strength, and corrosion resistance in aluminum systems.
What factors affect silicon metal price?
Raw material quality, energy cost, and impurity levels are key drivers.
These factors directly affect production efficiency and final purity.
Get a Metallurgical Grade Silicon Quote
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