4140 Alloy Steel High-Pressure Coupling Sleeve 3-inch from Japan
Heavy-duty threaded sleeve from 4140 chrome-moly alloy steel for 3-inch high-pressure hydraulic lines in mining equipment. HTS 7307.92.3030 applies to these non-stainless alloy threaded couplings, offering superior tensile strength for demanding industrial connections.
Duty Rate — Japan → 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
• Chemical analysis report required to prove 4140 alloy (Cr 0.8-1.1%, Mo 0.15-0.25%) and non-stainless status
• Specify application (e.g
• hydraulic) but avoid end-use claims that could trigger reclassification