High-Fracture Calcined Bauxite Aggregate
High-fracture calcined bauxite features angular particles with superior toughness, ideal for skid-resistant road surfacing and anti-slip pavements. Classified under HTS 2606.00.0060 as other calcined bauxite, it meets specifications for aggregate with high alumina content post-calcination. Its thermal processing enhances durability for abrasive applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used as natural pebbles for road surfacing
Non-calcined pebbly aggregates classify under heading 2517 for natural road-making materials.
If shaped into refractory bricks
Formed refractory products from calcined bauxite fall under Chapter 69 for ceramics.
If chemically treated for industrial additives
Processed chemical preparations from bauxite residues may shift to Chapter 38.
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Import Tips & Compliance
• Provide particle size distribution and fracture index test results to support 'other' classification
• Label shipments clearly as calcined to prevent confusion with natural aggregates under Chapter 25
• Comply with DOT or ASTM standards documentation for infrastructure end-use to expedite clearance
Related Products under HTS 2606.00.00.60
Calcined Bauxite for Aluminum Smelting
Calcined bauxite is a processed form of bauxite ore heated to remove moisture and impurities, resulting in a high-alumina concentrate used primarily as feedstock in aluminum production via the Bayer process. This product falls under HTS 2606.00.0060 as 'other' calcined bauxite, distinct from crushed or ground variants. It is graded for its alumina content, typically exceeding 50%.
Refractory-Grade Calcined Bauxite
Refractory-grade calcined bauxite is thermally treated to achieve over 85% alumina content, used in high-temperature furnace linings and kiln furniture. It is categorized under HTS 2606.00.0060 for other calcined bauxite concentrates. The calcination process densifies the ore for superior heat resistance.
Guyana Calcined Bauxite Lumps
Guyana-sourced calcined bauxite lumps are roasted bauxite ore in lump form (typically 25-150mm), used for proppants in oil fracking or as metallurgical flux. This falls under HTS 2606.00.0060 as other calcined bauxite, excluding fines or powder. High iron and titania content suits specific industrial blends.
Australian Calcined Bauxite Fines
Australian calcined bauxite fines (<4.75mm) are fine-grained concentrates from rotary kiln calcination, applied in precision castables and anti-corrosion coatings. Classified as HTS 2606.00.0060 other calcined bauxite due to particle size and processing. Low silica content enhances purity for specialty refractories.