4140 Alloy Steel High-Pressure Coupling Sleeve 3-inch from China
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 — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(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