Threaded Alloy Steel Reducer Coupling 4x2 inch from Japan
Alloy steel (non-stainless) threaded reducer sleeve coupling transitioning from 4-inch to 2-inch pipe diameters in process piping. Falls under HTS 7307.92.3030 as a sleeve-type fitting despite size reduction, due to its coupling function and alloy material.
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
• Invoice must detail both end sizes and thread type; reducer function shouldn't misclassify as elbow
• Hydrostatic test certificates help prove pressure integrity for customs valuation