U.S. exports of Cold-Formed Iron & Non-Alloy Steel Bars and Rods, High Carbon (≥0.6% Carbon) (SITC 67633) totaled $5.3M in August 2026.
Importers of Cold-Formed Iron & Non-Alloy Steel Bars and Rods, High Carbon (≥0.6% Carbon) paid $842K in duties in August 2026, an average duty rate of 32.80% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Cold-Formed Iron & Non-Alloy Steel Bars and Rods, High Carbon (≥0.6% Carbon) imports of $3.1M in August 2026 ran 15% above the year-to-date monthly average of $2.7M.
Last updated: August 2026 dataSection 232 tariffs apply broadly to steel mill products, and cold-formed or cold-finished iron and non-alloy steel bars and rods with carbon content at or above 0.6% by weight fall squarely within that framework. The elevated carbon level distinguishes these products from lower-carbon structural bar stock, making them suitable for spring steel, wear-resistant tooling, and similar demanding applications where hardness and tensile strength are priorities. Importers should confirm carbon content certification from the mill, as the 0.6% threshold is a classification boundary that determines which SITC line applies.
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242 import shipments a month
Classification at or above 0.6% carbon by weight is established by the mill test certificate (MTC) accompanying the shipment. Customs authorities may request the MTC to verify the carbon content and confirm the correct SITC or HTS heading applies, so importers should ensure documentation is complete before entry.
Cold-forming or cold-finishing imparts tighter dimensional tolerances, improved surface finish, and higher yield strength compared to hot-rolled bar. These characteristics make cold-formed high-carbon bars preferred for precision machined components, whereas hot-rolled equivalents are classified under a separate SITC line (67643).
Basic heading 281 of 766 in section 6
Basic heading 67633 · $5.3M of $13.0B
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Exports · August 2026
destination
Mexico and Canada together take 95% 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.
ImportsExports
Imports
$3.1MYoY · free account
Exports
$5.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $31.6M of Cold-Formed Iron & Non-Alloy Steel Bars and Rods, High Carbon (≥0.6% Carbon) and exported $60.3M.
Through August 2026. Source: U.S. Census Bureau.