Hot-Drawn C1060 Rectangular Spring Steel Flat Bar
Hot-drawn flat rectangular bar of C1060 nonalloy steel (0.55-0.65% carbon), rectangular cross-section, used for flat springs and blades. HTS 7214.91.00.90 applies to high-carbon (≥0.6%) nonalloy rectangular bars hot-drawn, not further worked, distinguishing from round spring steel.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lower carbon content <0.6%
Spring steel flats under 0.6% carbon classify in the other rectangular nonalloy subheading.
If alloy angles/shapes but rectangular profile
Alloy versions of similar rectangular sections fall under alloy steel headings.
If fabricated into structural sections
Post-import fabrication into beams/angles shifts to Chapter 73 iron/steel structures.
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Import Tips & Compliance
• Include heat treatment records if normalized post-hot-draw, but avoid chemical/physical surface treatments to stay 'not further worked'
• Measure width/thickness ratio carefully; very thin flats may face review for 7213/7214 distinction
• Certify carbon content precisely; borderline cases often require lab testing by CBP
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