Blast Furnace Slag Aggregate
Crushed blast furnace slag macadam for concrete sub-base and drainage layers in road projects. Specifically classified in 2517.20.00.00 as slag-based macadam incorporating industrial waste materials.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If finely ground for cement production
Ground granulated blast furnace slag becomes cementitious material.
If expanded or foamed for lightweight fill
Processed prepared binders exclude from raw waste aggregates.
If pumice-like expanded slag
Lightweight volcanic materials heading if sufficiently processed.
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Import Tips & Compliance
• Certify slag is air-cooled (not ground) to avoid classification as hydraulic cement in 2523
• Screen size analysis certificates prevent disputes over granule vs powder classification
• Avoid oil contamination during shipping; document clean storage conditions
Related Products under HTS 2517.20.00.00
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