6mm OD Seamless Copper Gas Line Coil from China

Precisely 6 mm OD seamless tubing from refined copper, coiled on spools for natural gas and propane distribution lines. Meets HTS 7411.10.10.30 criteria: refined copper, seamless, exact minimum OD, in coils on spools.

Duty Rate — China → United States

36.5%

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

Provide pressure rating certifications (e.g

Type K/L) matching gas service to support classification

Customs scrutiny high for gas lines—include annealing certs proving seamless form

Don't mix with metric/imperial confusion; measure OD in mm per HTS specs