API 5L Grade B Seamless Steel Pipe 4-inch OD 0.5-inch Wall from Japan
A seamless carbon steel pipe with 101.6 mm OD and 12.8 mm wall thickness, made from non-alloy steel for oil and gas transmission lines. It falls under HTS 7304.39.0032 due to its circular cross-section, OD between 38.1-114.3 mm, and wall thickness over 12.7 mm. Commonly used in high-pressure pipelines requiring structural integrity.
Duty Rate — Japan → United States
10%
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
Import Tips
• Verify seamless certification via NDT reports (ultrasonic/hydrostatic testing) as required for API 5L specs to avoid reclassification
• Include mill test certificates (MTC) showing chemical composition and mechanical properties for non-alloy steel confirmation
• Measure OD and wall thickness precisely; tolerances under 12.7 mm wall shifts to thinner subheadings, risking underpayment penalties