Containing 25 percent or more by weight of silicon
Unwrought aluminum: > Aluminum alloys: > Other: > Containing 25 percent or more by weight of silicon
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Products classified under HTS 7601.20.60.00
Al-Si 25 Alloy Ingot
Primary aluminum-silicon alloy ingots containing at least 25% silicon by weight, produced by smelting and casting for remelting. Classified under HTS 7601.20.60.00 as unwrought aluminum alloys with high silicon content exceeding the standard alloy limits. Used primarily in casting applications for automotive and aerospace components.
Silumin Casting Alloy Billets
Cylindrical billets of Al-Si alloy with 25-30% silicon content, designed for remelting in die casting operations. Meets HTS 7601.20.60.00 criteria as unwrought aluminum alloy due to high silicon proportion distinguishing it from standard alloys. Essential for producing complex engine parts and pistons.
High-Silicon Aluminum Notch Bar
Notch-bar form of aluminum alloy containing 27% silicon by weight, suitable only for remelting into castings. Classified as unwrought under 7601.20.60.00 because it retains the characteristics of freshly cast metal with specific high silicon content. Commonly used in gravity die casting for industrial components.
AlSi25 Primary Sow Alloy
Large sow-shaped castings of primary aluminum-silicon alloy with exactly 25% silicon content by weight. HTS 7601.20.60.00 applies as unwrought alloy specifically defined by high silicon proportion over standard limits. Used by secondary smelters for producing wear-resistant castings.
Silicon-Aluminum Foundry Pig
Pig castings of Al-Si master alloy containing 28% silicon for foundry addition to base aluminum melts. Qualifies under 7601.20.60.00 as unwrought high-silicon aluminum alloy in pig form intended solely for remelting. Critical for achieving desired silicon levels in sand castings.
25% Silicon Aluminum Slab
Rectangular slab castings of aluminum alloy with 25% silicon content, maintained in unwrought condition for remelting. HTS 7601.20.60.00 designation reflects the specific high silicon composition distinguishing from other alloy slabs. Applied in continuous casting for piston production.
Hypereutectic Al-Si Ingot
Hypereutectic aluminum-silicon alloy ingots with 26% silicon exceeding eutectic point for superior wear resistance. Classified 7601.20.60.00 as unwrought alloy due to defined high silicon content ≥25%. Used exclusively in manufacturing cylinder liners and bearing surfaces.
Master Alloy AlSi30 Granules
Granulated master alloy of 30% silicon in aluminum matrix for precise silicon additions to melts. While granulated, retains unwrought status under 7601.20.60.00 due to high silicon content and remelt purpose. Preferred for controlled chemistry in high-volume foundries.
Automotive Casting Al-Si Alloy
Unwrought aluminum-silicon alloy pigs standardized for automotive foundries with 25.5% silicon content. HTS 7601.20.60.00 covers this specific high-silicon composition in pig/sow form for remelting into transmission housings and engine blocks. Meets OEM specifications for castability.
Die Casting High-Silicon Aluminum
Billets of high-silicon (27%) aluminum alloy optimized for high-pressure die casting applications. Remains unwrought under HTS 7601.20.60.00 with silicon content ≥25% by weight in billet form. Produces thin-walled structural components with excellent fluidity.
Piston Alloy Unwrought Ingots
Special unwrought ingots of Al-25%Si alloy developed for hypereutectic piston production via squeeze casting. HTS 7601.20.60.00 precisely matches this high-silicon unwrought form. Provides low thermal expansion critical for high-performance engines.
Wear-Resistant Al-Si Master Alloy
Master alloy sows containing 29% silicon in aluminum for enhancing wear resistance in cast iron-aluminum composites. Classified unwrought HTS 7601.20.60.00 based on ≥25% silicon content in sow configuration. Used in metallurgical additions for bimetallic castings.
Cylinder Liner Alloy Billets
DC-cast billets of 25.2% silicon aluminum alloy for centrifugal casting of engine cylinder liners. Unwrought status confirmed under 7601.20.60.00 by high silicon specification and billet morphology. Delivers exceptional abrasion resistance in diesel applications.
Electronic Packaging Al-Si Alloy
High-silicon (25%) aluminum alloy ingots for low-expansion electronic packaging and heat sinks. Meets HTS 7601.20.60.00 unwrought criteria with specified silicon content matching CTE requirements. Alternative to Kovar for hermetic seals.
Sand Casting High-Silicon Sow
Large sows of 26% silicon aluminum alloy for sand casting large structural components. HTS 7601.20.60.00 classification for unwrought high-silicon content in sow form suitable only for remelting. Used where high fluidity and low shrinkage required.