U.S. exports of Non-Granulated Slag, Dross, Scalings & Iron/Steel Manufacturing Waste (SITC 27862) totaled $4.8M in August 2026.
Importers of Non-Granulated Slag, Dross, Scalings & Iron/Steel Manufacturing Waste paid $14K in duties in August 2026, an average duty rate of 3.28% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Non-Granulated Slag, Dross, Scalings & Iron/Steel Manufacturing Waste imports of $435K in August 2026 ran 49% below the year-to-date monthly average of $859K.
Last updated: August 2026 dataAir-cooled blast-furnace slag, electric-arc furnace slag, mill scale, and dross generated during iron and steel production are grouped here — distinct from the granulated variety that carries cementitious value. These materials find secondary markets as road-base aggregate, railroad ballast, and raw material for mineral wool insulation, with mill scale recycled as an iron-oxide feedstock for pigments or re-smelting. Classification hinges on the specific waste type and its physical form, as some dross and scalings may alternatively qualify under scrap metal headings depending on iron content and processing state.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
28 import shipments a month
Mill scale — the iron-oxide flake that forms on hot-rolled steel surfaces — is commonly recycled as a sintering feed or direct-reduced iron input. However, importers should confirm that the material's iron content and form do not reclassify it under iron ore or scrap headings, as the distinction affects duty treatment and may trigger different documentation requirements.
Air-cooled slag is primarily crushed and sized for use as road-base aggregate, drainage fill, and railroad ballast, where its hardness and angular particle shape are advantageous. It also serves as a raw material for mineral wool (rock wool) insulation manufacturing when the chemistry is suitable.
Basic heading 89 of 239 in section 2
Basic heading 27862 · $4.8M of $7.8B
ImportsExports
Imports
$435KYoY · free account
Exports
$4.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $10.6M of Non-Granulated Slag, Dross, Scalings & Iron/Steel Manufacturing Waste and exported $39.2M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Canada and China together take 78% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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