Heat-Treated 0.45% Carbon Spring Wire from Mexico
Round wire of nonalloy steel containing 0.45% carbon by weight, heat treated for enhanced tensile strength and elasticity. Used primarily in manufacturing compression and extension springs for automotive suspensions and industrial machinery. Classified under HTS 7217.10.80.10 due to its carbon content between 0.25-0.6%, round shape, and heat treatment without plating or coating.
Duty Rate — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide mill test certificates verifying carbon content (0.25-0.6%) and heat treatment process to avoid reclassification
• Declare exact diameter and tensile strength; common pitfall is misstating as cold-drawn without heat treatment
• Check for inadvertent coatings; even light oil may shift to plated categories requiring different documentation