12 inch 65# Type 317 Stainless Casing for HPHT Wells from China
Type 317 stainless steel seamless casing designed for high-pressure high-temperature (HPHT) wells, 12 inch OD (304.8 mm), 65 lb/ft, 16.5 mm wall thickness, premium threaded/coupled connections. 7304.24.30.40 applies due to stainless composition, seamless manufacture, drilling casing function, correct OD range, and thick walls.
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 treatment records for HPQT compliance; verify minimum yield strength testing; ensure proper thread compound compatibility documentation