Industrial Silicon Metal Grade 421 / 441 / 553 / 2202 / 3303 / 1101

 

Silicon Metal is an essential industrial raw material widely used in aluminum alloys, chemical production, and metallurgical applications. Produced through submerged arc furnace smelting and strict quality control, our silicon metal is supplied in multiple grades to meet different impurity and performance requirements.

Different grades such as 421, 441, 553, 2202, 3303, and 1101 are available, allowing customers to select the most suitable option based on application needs and cost-performance balance.

 

Main Applications by Industry

• Aluminum Alloy Production

Silicon metal is used as an alloying element to improve fluidity, strength, and corrosion resistance of aluminum alloys.

• Chemical & Silicone Industry

High-grade silicon metal serves as a key raw material for producing silicone, silane, and other silicon-based chemical products.

• Metallurgical & Special Applications

Specific grades are selected for metallurgical processes where controlled impurity levels are required.

 

Available Grades

• 421 / 441 / 553 – Common industrial grades for aluminum alloy and general applications
• 2202 / 3303 – Grades with controlled impurity levels for chemical and metallurgical use
• 1101 – Higher purity grade for demanding industrial applications

 

Product Form & Supply Options

• Form: Lump / Granule (customizable)
• Size: Available in different size ranges based on customer requirements
• Packaging: 25kg bags, 1MT jumbo bags, or customized export packing

 

 

Type	Chemical Composition (%)
	Si(Min)	Max
		Fe	Al	Ca
Si-1101	99.7	0.1	0.1	0.01
Si-2202	99.5	0..2	0.2	0.02
Si-3303	99.3	0.3	0.3	0.03
Si-421	99.2	0.4	0.2	0.1
Si-441	99.0	0.4	0.4	0.1
Si-553	98.5	0.5	0.5	0.3

 

 

• Multiple grades available to meet different application requirements
• Stable chemical composition and consistent quality
• Suitable for aluminum, chemical, and metallurgical industries
• Flexible size and packaging options
• Reliable supply for long-term cooperation

 

 

We are a professional supplier of Silicon Metal and related silicon materials, serving international customers in aluminum alloy, chemical, and metallurgical industries. With stable production resources and strict quality management, we focus on delivering consistent-grade silicon metal such as 421, 441, 553, 2202, 3303, and 1101, supporting different impurity-control requirements and application needs.

Our team understands global trade procedures and customer expectations for industrial raw materials. From grade selection and size matching to export packing and documentation, we aim to provide a reliable supply experience for long-term cooperation.

 

Our Strengths

• Multiple grades available: industrial silicon metal grades for aluminum, chemical and metallurgical uses
• Stable quality control: composition monitoring and batch inspection to ensure consistency
• Flexible sizing: lumps and customized sizing options to fit different melting and feeding processes
• Export-ready packaging: moisture-proof, sea-freight suitable packing to reduce transport risk
• Professional documentation: COA and full export documents available per shipment
• Efficient response: fast communication and clear quotation process for international buyers

Choosing us means choosing a supplier that values stable composition, consistent shipments, and practical service. We support customers not only with product supply, but also with grade recommendation, logistics coordination, and documentation preparation to help reduce procurement risk and improve supply continuity.

 

 

Product & Grade Selection

Q1: What is the difference between grades 421, 441, 553, 2202, 3303, and 1101?
A: These grades mainly differ in impurity limits (such as Fe/Al/Ca and other trace elements). We can recommend a suitable grade based on your application and cost-performance requirements.

Q2: Which grades are commonly used for aluminum alloy production?
A: Industrial grades such as 421/441/553 are commonly used for aluminum alloy and general industrial applications. Exact recommendation depends on your alloy and impurity tolerance.

Q3: Which grades are suitable for chemical or silicone applications?
A: Chemical/silicone production usually requires controlled impurities. Grades like 2202/3303/1101 may be considered depending on your process requirements.

Q4: Can you supply customized grades or special impurity control?
A: We can discuss customized requirements. Please share target composition limits and application details for evaluation.

 

Quality Control & Certificates

Q5: Do you provide COA for each shipment?
A: Yes, we provide a Certificate of Analysis (COA) for each batch/shipment.

Q6: How do you ensure stable quality between batches?
A: We implement batch management and quality inspection, with controlled sourcing and production monitoring to maintain stable composition and performance.

Q7: Can you provide samples for testing?
A: Yes, samples can be provided for evaluation. Please confirm the required grade, size, and quantity for sampling.

Q8: What documents can you provide for export?
A: Common documents include COA, commercial invoice, packing list, and other documents required by the shipment terms.

 

Size, Form & Packaging

Q9: What sizes of silicon metal can you supply?
A: Common sizes can be supplied, and customized sizing is available depending on your usage (melting, alloying, feeding method).

Q10: What packaging options do you offer?
A: Standard packaging includes 25kg bags or 1MT jumbo bags. Palletizing and customized export packing are available.

Q11: Is the packaging suitable for sea freight?
A: Yes, we provide export packing designed for long-distance sea transportation, including moisture-proof solutions if needed.

 

Logistics & Delivery

Q12: What shipping methods do you support?
A: Sea freight is the most common method for bulk industrial materials. Other options can be arranged depending on destination and order quantity.

Q13: Can you ship to our destination port or door?
A: We can arrange shipment based on trade terms and customer requirements. Please share your destination and preferred shipping terms.

Q14: How long is the typical lead time?
A: Lead time depends on grade, size, quantity, and packing. We will confirm the delivery schedule after order details are finalized.

 

Ordering & Cooperation

Q15: What is your MOQ (minimum order quantity)?
A: MOQ depends on grade, size, and packaging. Please share your target grade and quantity for confirmation.

Q16: Can you support long-term contracts or regular supply?
A: Yes, we support long-term cooperation and can provide stable supply plans for regular orders.

Q17: What information do you need for a quick quotation?
A: Please provide grade (421/441/553/2202/3303/1101), size range, quantity, packaging, and destination port.

Q18: How do you handle quality claims if issues occur?
A: We value long-term cooperation. If any quality issue is confirmed, we will respond promptly and provide solutions based on batch records and inspection results.

 

 

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