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SITCSection 6
U.S. imports of high-speed steel bars and rods (SITC 67641) totaled $4.7M in April 2026, traded with 14 countries.
Importers of High-Speed Steel Bars and Rods paid $2.3M in duties in April 2026 — an effective duty rate of 51% on $4.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataDefined by their ability to retain hardness at elevated cutting temperatures, high-speed steel (HSS) bars and rods are the primary raw form from which drill bits, milling cutters, taps, and other metal-cutting tools are manufactured. The alloy chemistry — typically featuring significant tungsten, molybdenum, cobalt, or vanadium additions — is what separates HSS from other alloy steels and justifies its dedicated SITC classification. Trade professionals should note that HSS is subject to Section 232 steel tariffs, and the specialty nature of the grade means supply is concentrated among a limited number of global producers with certified tool-steel capabilities.
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Classification as high-speed steel depends on the alloy meeting specific compositional thresholds — typically defined in the HTS schedule by minimum percentages of tungsten, molybdenum, and vanadium, combined with a minimum carbon content. The mill test certificate must show the full chemistry; without it, CBP may reclassify the product as general alloy steel bar, which carries different duty treatment.
Domestic tool manufacturers — producing cutting tools, dies, and precision instruments — are the primary consumers. Aerospace and defense machining operations also source HSS bar for specialized tooling. Because domestic HSS production capacity is limited, imports remain an important supply channel for US tool manufacturers.
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Monthly import values over time