3-1/2" Q125 Premium Alloy Drill Casing from China
Seamless Q125 grade alloy steel casing with 88.9 mm OD and 11.5 mm wall thickness for deep oil well drilling. HTS 7304.29.41.10 applies as other alloy steel seamless casing under 215.9 mm OD and <12.7 mm wall. Features proprietary quench-and-temper heat treatment for extreme conditions.
Duty Rate — China → United States
35%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• Provide heat number traceability from MTRs linking to specific pipe dimensions and properties
• Avoid common pitfall of declaring as carbon steel; alloy elements like Cr/Ni/Mo must be documented
• For threaded/premium connections, classify based on pipe body, not accessory threads