CPM-M4 Tool Steel Flat Stock 8x20mm
Precision-ground but cold-finished flat stock of CPM-M4 tool steel (1.4% C, 4% Cr, 4% V—note e(i)/(ii)), max 20mm but effective cross-section <18mm, for wear parts. 7228.50.10.40 as other tool steel bars cold-formed.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as finished interchangeable tool bit
Further fabricated into tooling classifies as tool, not raw bar.
If high-speed (high V/W content)
M4's composition qualifies as high-speed, separate heading.
If stainless tool steel variant
Certain Cr-rich tool steels may fall under stainless angles/shapes.
Not sure which classification is right?
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Import Tips & Compliance
• Clarify 'maximum cross-sectional dimension' in docs—typically larger side for rectangles
• PM steels need detailed analysis certs; powder metallurgy doesn't change steel classification
• Avoid 'ground' terminology if precision-ground exceeds cold-finishing tolerances
Related Products under HTS 7228.50.10.40
D2 Tool Steel Round Bar 12mm
Cold-finished round bar made from D2 tool steel, a high-carbon, high-chromium alloy steel with approximately 1.5% carbon and 12% chromium, used for making punches and dies. It falls under HTS 7228.50.10.40 as a tool steel bar (per U.S. note (e) definition ii), cold-formed or cold-finished, with maximum cross-sectional dimension under 18 mm, and not high-speed steel. The bar is supplied in straight lengths without further surface working beyond cold-finishing.
O1 Tool Steel Flat Bar 10x15mm
Cold-rolled flat bar of O1 oil-hardening tool steel (0.9% C, 1% Mn, 5% Cr equivalent per note e(iii)), max dimension 15mm, for toolmaking and gauges. Classified under 7228.50.10.40 as cold-finished tool steel bar under 18mm, not high-speed. No further working beyond cold-finishing.
A2 Tool Steel Square Bar 14mm
Cold-drawn square bar from A2 air-hardening tool steel (1% C, 5% Cr), max cross-section 14mm, used for shear blades and punches. HTS 7228.50.10.40 applies to this cold-finished tool steel (note e(ii)), under 18mm, other than high-speed.
S7 Tool Steel Round Bar 16mm
Cold-finished round bar of S7 shock-resisting tool steel (0.5% C, 3.25% Cr, 1.4% Mo per note e(v)), 16mm diameter, for impact tools. Fits 7228.50.10.40: tool steel, cold-formed, <18mm cross-section.
H13 Tool Steel Round Bar 10mm
Cold-drawn H13 hot-work tool steel bar (0.4% C, 5% Cr, 1.3% Mo—borderline note e), 10mm diameter for die inserts. HTS 7228.50.10.40: cold-finished tool steel <18mm.
M2 Tool Steel Hex Bar 11mm Across Flats
Cold-hexagon bar M2 (1% C, 4% Cr, 5% W—high-speed but listed as other), 11mm across flats (<18mm), for cutters. 7228.50.10.40 as specified tool steel cold-finished.