Silicon Metal 441 High Purity Metallurgical Grade

Silicon Metal 441 High Purity Metallurgical Grade presents a silvery-gray metallic luster and possesses a hard yet brittle texture. Chemically stable, it resists corrosion by water and acids at room temperature, reacting only with strong alkalis. It features a high melting point (approximately 1414°C), excellent thermal conductivity, and semiconductor properties. It serves a dual role: acting as an additive to enhance alloy performance, and serving as a raw material for the synthesis of various silicon-based compounds.

Metallurgical Industry: Used as a deoxidizer and alloying additive in steelmaking and aluminum smelting, it effectively removes impurities-such as oxygen and sulfur-from molten metal, thereby enhancing the strength, hardness, and corrosion resistance of steel and aluminum products. In aluminum alloy production, it forms an Al-Si solid solution with aluminum, which refines the grain structure; this process can boost the tensile strength of aluminum alloys by 20–30% and their hardness by 15–20%. Consequently, it is widely employed in the manufacturing of aluminum alloy products such as automotive wheels, engine blocks, and architectural profiles.
Chemical Industry: Utilized in the production of silicon-based compounds-such as silanes and silicones-which are subsequently processed into products like lubricants, sealants, adhesives, and coatings. These products find extensive application across the chemical, construction materials, and electronics sectors. Additionally, it serves as a raw material for the production of silicone resins, which are used to manufacture chemical equipment components requiring high-temperature resistance and anti-aging properties.
Solar & Electronics Industries: Serves as a raw material for the production of polysilicon, which, following further purification, is used in the manufacturing of solar photovoltaic cell modules. It also functions as an auxiliary raw material for producing semiconductor materials, effectively meeting the production requirements for low-to-mid-range electronic components while offering a significantly higher cost-performance ratio compared to high-purity, semiconductor-grade silicon metal. Other Applications: Used in the production of refractory materials, abrasives, ceramics, and similar products to enhance their high-temperature resistance and wear resistance. It also serves as an inoculant in the foundry industry, improving the microstructure of castings, minimizing defects, and enhancing overall casting quality.

Q1: Can you consistently guarantee a purity level of over 99.0% for your 441-grade silicon metal?
A1: Yes, absolutely. We maintain strict control over raw material selection, smelting, and purification processes. Every batch of product undergoes third-party quality testing-with reports available upon request-to ensure a silicon content of ≥99.0% and that impurity levels fully comply with the standards for the 441 grade, guaranteeing stable and reliable quality.
Q2: What is the Minimum Order Quantity (MOQ)? Do you accept small-batch trial orders?
A2: The MOQ is 1 ton. We do accept small-batch trial orders, and customers placing trial orders are eligible for preferential pricing. Additionally, we provide comprehensive sample testing services, allowing you to verify the product quality firsthand before committing to a bulk purchase, thereby minimizing your procurement risks.
Q3: Can you customize the particle size and packaging?
A3: Yes, we can. We are able to customize both the particle size and packaging according to your specific requirements. Furthermore, we offer personalized labeling services to ensure that all your export and operational needs are fully met.

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