Alloy Steel Weld Neck Flange 150# from Canada
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 — Canada → United States
15.5%
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
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