4.0 mm Heat-Treated Saw Wire for Stone Cutting
High-carbon (0.8%) round wire heat-treated for diamond sawing applications, 4.0 mm diameter, not plated. Meets HTS 7217.10.80.45 specs for ≥0.6% carbon, heat-treated, round ≥1.5 mm. Used as core wire for diamond bead saws.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with diamond segments attached
Finished diamond saw wire or beads are classified as saw blades/tools under Chapter 82.
If lower carbon content
Wire <0.6% carbon, even heat-treated, uses the initial high-carbon threshold subheading.
If high-speed tool steel
Tool steel grades meeting U.S. note e(v) for saw wire use alloy Chapter 72 headings.
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Import Tips & Compliance
• Document fracture toughness and fatigue resistance from heat treatment; ensure no cladding or coating for diamond adhesion; provide usage certification if questioned for end-use
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