O1 Oil-Hardening Tool Steel Billet
O1 tool steel billets with 0.85-1.0% carbon and 0.9-1.3% manganese per U.S. Note (e)(iii), used as feedstock for forging tools and gauges. HTS 7224.90.0035 covers these semi-finished primary forms of other tool steel.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If Specific alloy meeting chipper knife steel specs (U.S. Note f).
Chipper knife steel has dedicated subheading within tool steel semi-finished products.
If hot-rolled into angles/profiles
Tool steel rolled into angles, shapes, or sections classifies under 7228.70.
If not alloyed to tool steel minimums
Semi-finished products failing tool steel criteria default to non-alloy ingots in 7207.
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Import Tips & Compliance
• Include heat analysis certificates specifying manganese and carbon levels for tool steel validation
• Avoid bulk packaging that suggests further processing; maintain evidence of semi-finished state
Related Products under HTS 7224.90.00.35
D2 Tool Steel Round Bar
A high-carbon, high-chromium tool steel bar conforming to AISI D2 specifications, used for making cutting tools and dies. Classified under HTS 7224.90.0035 as a semi-finished product of tool steel (per U.S. note (e), containing >1.2% carbon and >10.5% chromium) in primary form, not further worked beyond basic shaping.
CPM-M4 Powder Metallurgy Tool Steel Billet
CPM-M4 powder metal tool steel billets with high vanadium/tungsten for wear-resistant tools, qualifying as tool steel semi-finished product in HTS 7224.90.0035.
T15 Tungsten Tool Steel Ingot
T15 high tungsten tool steel ingots for cutting tools, with composition exceeding note (e)(vi) minimums. Primary form classification in other tool steel semi-finished HTS 7224.90.0035.
A11 Tool Steel Semi-Finished Block
A11 cold work tool steel blocks with PM process, high chromium/molybdenum for long-run tooling. Semi-finished rectangular blocks under HTS 7224.90.0035 tool steel other.
A2 Tool Steel Flat Stock
Air-hardening tool steel flat stock (AISI A2 type) with 0.95-1.05% carbon and 4.75-5.5% chromium, supplied in rectangular semi-finished form for machining into punches and shear blades. Fits HTS 7224.90.0035 as other semi-finished tool steel products meeting U.S. Note (e)(ii).
M2 High-Speed Tool Steel Ingot
M2 high-speed tool steel ingots containing tungsten and molybdenum per tool steel note (e), remelted for high-performance cutting tools. As primary form alloy tool steel, classified in HTS 7224.90.0035 'other'.