5 inch K55 BTC Casing from China
K55 grade seamless alloy steel casing with 5 inch OD, Buttress Thread Coupling (BTC), wall <12.7 mm for intermediate casing strings in conventional vertical wells. Provides good compression resistance. HTS 7304.29.31.10 threaded alloy steel oilfield casing.
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
• BTC couplings require coupling stock material certificates
• K55 suitable for non-corrosive environments—declare service conditions
• Verify seamless vs. welded status on all documentation