U.S. imports of granulated slag (slag sand) from iron or steel manufacture (HS 261800) totaled $13.0M in April 2026, traded with 8 countries.
Last updated: April 2026 dataGranulated blast-furnace slag — produced by quenching molten iron slag with water to form a glassy, sand-like material — is a widely traded supplementary cementitious material (SCM) used as a partial Portland cement replacement in concrete production. Classified under the single line 2618000000, it is distinct from non-granulated slag and other iron/steel manufacturing wastes covered by heading 261900. Japan and China are the leading foreign suppliers to the US, with Canada and Mexico also contributing volumes. Demand tracks construction activity and sustainability mandates that incentivize lower-carbon concrete mixes.
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Granulated slag (slag sand) is specifically produced by rapid water quenching of molten blast-furnace slag, yielding a glassy, hydraulically active material classified under 261800. Non-granulated slag, dross, scalings, and ferrous scale from iron or steel manufacture fall under heading 261900. The granulation process and resulting physical form are the key classification criteria.
Domestic blast-furnace capacity limits US production of granulated slag, creating a structural import need. Construction industry demand for ground granulated blast-furnace slag (GGBFS) as a cement substitute — valued for durability and reduced CO₂ footprint — sustains import volumes, with Japan and China as the primary foreign sources.
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Imports
$13.0M
from 8 countries · YTD: $32.4M
Exports
$1.9M
Deficit of $11.1M (net importer)
Trade balance: deficit of $11.1M (net importer)
YTD: $32.4M imported (April 2026)
51 shipments/month
Monthly import values over time
URANIUM ORES AND CONCENTRATES
HS 261210
AGGLOMERATED IRON ORES
HS 260112
MOLYBDENUM ORES AND CONCENTRATES NOT ROASTED
HS 261390
ASH AND RESIDUES NESOI, CONTAINING METALS NESOI
HS 262099
TITANIUM ORES AND CONCENTRATES
HS 261400
MOLYBDENUM ORES AND CONCENTRATES ROASTED
HS 261310
Top U.S. entry points for this product, ranked by latest-month import value.