Silicon Metal 3303/2202/1101

Company profile

 

Anyang Fengfan Silicon Industry Co., Ltd. is located in Anyang, one of the seven ancient capitals of China, adjacent to the Beijing Hong Kong Macau Expressway and Nanlin Expressway. With convenient transportation, superior natural environment, and abundant mineral resources, it provides unique conditions for the development of the enterprise. Our company's leading products include silicon carbon alloy, silicon aluminum barium calcium deoxidized alloy series, silicon carbide, metal silicon powder, silicon manganese ball, silicon carbon ball and other alloy pressed balls, silicon micro powder, ferrosilicon, rare earth ferrosilicon magnesium alloy, spheroidizing agent, etc. The product is popular among many large steel and casting enterprises in China. It is one of the main manufacturers in Anyang Metallurgical Materials Production Base.
Our company has excellent equipment, good production processes, strong technical strength, complete testing methods, and reliable product quality supply. We are committed to building a green, environmentally friendly, and sustainable enterprise, continuously researching and developing new products, and receiving high praise from users when they are launched into the market.
The company adheres to the concept of "people-oriented, pioneering and innovative, honest management, and win-win cooperation". We sincerely welcome new and old customers to visit us, work hand in hand, create a better tomorrow, and jointly forge a new brilliance for the national enterprise.

1. Meaning of Metallurgical Silicon Grades

The grades of metallurgical silicon are typically represented by four digits, such as 1101, 2202, 3303, with the following interpretation:

First digit: Maximum iron (Fe) content (×10⁻², i.e., percentage)

Second digit: Maximum aluminum (Al) content (×10⁻²)

Third digit: Maximum calcium (Ca) content (×10⁻²)

Fourth digit: Usually 1 or 2, indicating the control level of other impurities (e.g., titanium, phosphorus)

For example, 1101 means:

Fe ≤ 0.1%

Al ≤ 0.1%

Ca ≤ 0.01%

Strict control of other impurities

2. Key Differences Between 1101, 2202, and 3303

3. Impact of Production Processes

1101 requires stricter refining (e.g., ladle refining, directional solidification), leading to higher costs.

2202 typically undergoes standard electric furnace smelting with partial refining.

3303 is usually produced directly via arc furnace smelting, with a simpler process.

4. Market Trends

Growing demand for 1101 in solar PV and semiconductor industries (due to rising polysilicon needs).

New energy vehicles drive the use of 2202 in high-end aluminum alloys.

3303 remains stable, primarily used in traditional metallurgy and chemical industries.

Summary

1101 is ideal for high-value industries (e.g., solar, semiconductors), 2202 suits advanced manufacturing (e.g., automotive alloys), while 3303 is mainly used in traditional industrial applications. The choice of grade depends on specific industry requirements for silicon purity and cost.

(1) Metallurgical Silicon 1101

Highest purity, with extremely low impurity levels (Fe, Al, Ca all controlled below 0.1%).

Main applications:

Polysilicon (solar PV, semiconductor industries)

Silicones (silicone rubber, silicone oil, silicone resins, etc.)

Premium aluminum alloys (high-strength alloys for automotive and aerospace)

(2) Metallurgical Silicon 2202

Medium purity, with slightly higher impurities than 1101 but lower than 3303.

Main applications:

Mid-to-high-end aluminum alloys (automotive wheels, construction profiles, etc.)

Certain silicone products (where slightly lower purity is acceptable)

(3) Metallurgical Silicon 3303

Industrial-grade purity, with relatively higher impurity levels but lower cost.

Main applications:

Standard aluminum alloys (cast aluminum alloys, metallurgical additives)

Chemical raw materials (sodium silicate, silicon alloys, etc.)

Refractory materials (certain high-temperature-resistant materials)