Alloy Steel Weld Neck Flange 150# from China
A weld neck flange made of alloy steel (not stainless), with an inside diameter of 8 inches (203 mm), designed for high-pressure piping systems in oil and gas applications. It falls under HTS 7307.91.50.30 as a flange of alloy steel with inside diameter less than 360 mm. The long tapered hub provides strength and reduces stress concentration at the weld.
Duty Rate — China → United States
40.5%
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
• Verify alloy steel composition via mill test certificate to confirm non-stainless status; ensure inside diameter measurement is documented as under 360 mm
• Common pitfall: misclassifying as stainless steel which falls under different subheading