Metallurgical Grade Silicon Metal 441 Lump

 

In the high-performance metallurgical sector, Silicon Metal 441 serves as a critical additive for specialized aluminum alloys and precision castings. ZhenAn provides premium Grade 441 with strictly controlled Aluminum (Al ≤ 0.4%) and Calcium (Ca ≤ 0.1%) content. This specific impurity profile ensures exceptional stability during complex smelting processes, making it the premier choice for products requiring superior strength and corrosion resistance.

 

 

Our 441 silicon lumps are sourced from high-grade quartz and refined using advanced submerged arc furnace technology to ensure impurities stay well below industrial limits.

 

Chemical Element	Guaranteed Value (%)	ZhenAn Typical Value (%)
Silicon (Si)	≥ 99.10	99.25% - 99.40%
Iron (Fe)	≤ 0.40	0.31% - 0.35%
Aluminum (Al)	≤ 0.40	0.28% - 0.32%
Calcium (Ca)	≤ 0.10	0.03% - 0.06%

 

• Physical Form: Features a bright silver-gray metallic luster with a dense crystalline structure.
• Sizing: Standard lump size is 10-100mm. We operate professional crushing and screening lines to provide customized sizes (e.g., 10-50mm) tailored to your furnace requirements.

 

 

• Superior Calcium Control: For precision aluminum casters, lower calcium levels mean significantly less dross during melting. By maintaining Ca below 0.1%, we help improve the surface finish and structural uniformity of your final castings.
• Maximum Surface Purity: Every batch undergoes manual secondary inspection before bagging. We guarantee our lumps are 100% free of surface slag, visible oxidation, and carbon contamination, effectively minimizing your production losses.
• Logistics & Pricing: We maintain a massive inventory at key export hubs like Huangpu Port and Tianjin Port. Based on the March 2026 market update, our 441 pricing is highly competitive at approximately USD 1390-1430 per MT.[march 2026]

 

 

Q1: Is Silicon Metal 441 pure enough for silicone production?

A1: Yes, for many mid-range silicone intermediates and silicone oil syntheses, Grade 441 offers an excellent cost-performance balance because its calcium content is steadily maintained below 0.1%.If your process has more extreme requirements for iron and aluminum, we recommend checking our Grade 421 or 2202. We can provide a full series specification comparison table for you.

 

Q2: What are the specific advantages of using 441 over 553 for aluminum wheel production?

A2: The primary advantages are reduced dross and enhanced casting toughness. The ultra-low calcium in 441 prevents non-metallic inclusions during melting, significantly lowering the risk of cracking during pressure tests for wheels.

 

Q3: How do you guarantee the sizing uniformity for export shipments?

A4: ZhenAn operates an advanced automated crushing and triple-screening system. Besides standard 10-100mm lumps, we ensure over 90% of the material stays within the agreed range, minimizing the percentage of fines below 10mm.

 

Q4: How long is the current 441 price quote valid?

A1: Silicon metal market prices fluctuate significantly based on raw material and electricity costs. Currently, our March 2026 quotes are typically valid for 3-5 business days.

Given the current competitive range of approximately USD 1390-1430, we recommend locking in your price soon. Click to ask for a fresh CIF freight estimate.

 E-mail:sale@zanewmetal.com

 

 

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