Crushed Limestone Gravel
Crushed limestone gravel consists of broken stones typically sized 3/8 to 3/4 inch, commonly used as concrete aggregate in construction projects. It falls under HTS 2517.10.00 because it is broken or crushed stone specifically intended for concrete aggregates, road metalling, or ballast applications. The material may be heat-treated to enhance durability.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pea-sized pebbles under 256 mm
Uniform small pebbles for landscaping or decorative use classified separately from construction aggregates.
If shaped into setts, curbstones, or flagstones
Chapter note excludes worked stone products like setts from heading 2517; moves to chapter 68.
If mixed with earth colors or other minerals
Blends with non-stone materials like micaceous iron oxide fall under residual mineral heading 2530.
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Import Tips & Compliance
• Verify particle size distribution meets ASTM C33 standards for concrete aggregates to ensure proper classification under 2517.10.00
• Provide geological origin certification and heat-treatment records if applicable to avoid reclassification as mere pebbles
Related Products under HTS 2517.10.00
Railway Ballast Crushed Stone
Hard crushed stone, typically basalt or granite sized 1.5-2.5 inches, used as railway ballast to support tracks and facilitate drainage. Meets HTS 2517.10.00 criteria as broken stone for railway ballast applications. Angular shape from crushing prevents shifting under load.
Basalt Concrete Aggregate
Crushed basalt stone aggregate with excellent compressive strength, sized for ready-mix concrete production. HTS 2517.10.00 classification due to primary use in concrete aggregates and road base. Dark color from natural iron content.
Crushed Marble Road Metal
Crushed marble chips used as road metalling material in rural roads and driveways, providing white decorative surface course. Although marble originates from heading 2515, crushing for road use brings it under HTS 2517.10.00. Angular particles ensure good compaction.
Washed Sea Shingle Ballast
Washed sea shingle consisting of rounded pebbles collected from coastal areas, sized for railway or crane mat ballast applications. HTS 2517.10.00 explicitly includes shingle for ballast uses. Natural salt content removed by washing.
Quartzite Crushed Road Aggregate
High-silica quartzite crushed to 1-2 inch size for road shoulder and base course construction. Exceptional hardness makes it ideal for heavy traffic roads under HTS 2517.10.00. Heat-treated versions improve frost resistance.
Gneiss Railway Ballast
Metamorphic gneiss crushed to AREMA #4 ballast specification for mainline railway track support. Provides excellent lateral stability under HTS 2517.10.00 railway ballast provision. Banded appearance from mineral layering.