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
Slag Macadam for Road Base
Crushed slag from steel production processed into macadam aggregate for road construction base layers. Classified under HTS 2517.20.00.00 as macadam of slag, a common industrial waste material used directly in road metalling without further processing beyond crushing.
Steel Slag Road Ballast
Granular steel slag macadam designed for railway ballast and highway shoulders, incorporating dross fines. Falls under 2517.20.00.00 as macadam from industrial waste suitable for railway ballast per heading description.
Copper Smelter Dross Macadam
Macadam produced from copper smelter dross and slag, used in secondary road construction and parking lot bases. HTS 2517.20.00.00 covers dross as similar industrial waste whether or not mixed with other aggregates.
Tarred Slag Macadam Mix
Slag macadam incorporating tar binder for dust control in temporary road surfaces. Included in HTS 2517.20.00.00 explicitly as 'tarred macadam' of slag/dross industrial waste.
Foundry Sand-Slag Macadam Blend
Macadam blending spent foundry sand with steel slag for foundry yard paving and industrial hardstandings. HTS 2517.20.00.00 includes mixtures incorporating similar industrial wastes.
Incinerator Bottom Ash Macadam
Processed municipal solid waste incinerator bottom ash formed into road macadam for base courses. Qualifies under 2517.20.00.00 as macadam from similar industrial waste materials.