S7 Tool Steel Ground Flat Bar
30 mm x 15 mm flat rectangular bar of S7 shock-resisting tool steel, ground on all surfaces for die components. Qualifies under HTS 7228.50.10.60 as tool steel (U.S. note (e)) rectangular cross-section bar >18 mm max dimension with ground finish from cold operations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If surfaces not ground, milled, or polished
Plain cold-formed tool steel bars without precision surfacing in residual .90 provision.
If drill bars or rods configuration
Hollow or specialized drill configurations of tool steel in dedicated subheading.
If tubular construction for mechanical tubing
Hollow bars/sections shift to Chapter 73 tubes/pipes if meeting tube definitions.
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Import Tips & Compliance
• ,Confirm cold-finished only; hot-rolled + grinding may classify as 7228.50.90
• Declare surface roughness (Ra values) if audited; polished implies specific finish levels
Related Products under HTS 7228.50.10.60
D2 Tool Steel Ground Round Bar
A 20 mm diameter round bar made from D2 alloy tool steel, cold-finished with ground surfaces for precision machining applications. Classified under HTS 7228.50.10.60 as tool steel (meeting U.S. note (e)) bars of round cross-section with maximum dimension over 18 mm and ground surfaces, not further worked beyond cold-finishing. Ideal for dies, punches, and shear blades requiring high wear resistance.
O1 Tool Steel Polished Rectangular Bar
25 mm x 20 mm rectangular section bar of O1 oil-hardening tool steel, polished finish for gauge and fixture manufacturing. Fits HTS 7228.50.10.60 as tool steel bars (U.S. note (e)(iii): ≥0.85% C, 1-1.8% Mn) with rectangular cross-section >18 mm max dimension and polished surfaces from cold-finishing.
A2 Tool Steel Milled Round Bar
22 mm diameter A2 air-hardening tool steel bar with milled surfaces for precision tooling blanks. HTS 7228.50.10.60 applies to this cold-finished tool steel (U.S. note (e)(ii): ≥0.3% C, 1.25-10.5% Cr) round bar over 18 mm with machined surfaces, not further processed.
CPM-M4 Tool Steel Polished Round Bar
19 mm diameter CPM-M4 powder metallurgy tool steel bar, polished surface for high-performance milling cutters. HTS 7228.50.10.60 for this tool steel (U.S. note (e)(i): >1.2% C, >10.5% Cr equiv) round bar just over 18 mm with polished cold-finish.
H13 Tool Steel Milled Rectangular Stock
25 mm x 22 mm H13 hot-work tool steel rectangular bar, milled surfaces for mold and die making. Classified HTS 7228.50.10.60 as qualifying tool steel bar with rectangular section >18 mm and machined finish, cold-formed only.