Heavy Weight Drill Pipe HWDP 3-1/2 inch Alloy Steel from China
3-1/2 inch (88.9 mm) outside diameter heavy weight drill pipe (HWDP) made from seamless alloy steel tubing with a 7.8 mm wall thickness for transition zones in drilling strings. Features upset ends for premium tool joint connections, classified under tariff item 7304.23.00.
Duty Rate — China → Canada
0%
Import Tips
• Document the upset ends and heavy weight design to distinguish from standard drill pipe
• Provide alloy composition and grade certificates
• Confirm the pipe is used in drilling strings to meet the tariff definition