10-3/4 inch 51.5 ppf SMSS 13-5-2 Casing from China
Super martensitic stainless steel (13-5-2) seamless casing for subsea oil/gas completions, 10-3/4 inch OD exceeding 406.4mm specification. Engineered for extreme sour service and high collapse resistance. HTS 7304.24.40.80 due to stainless steel composition and oilfield casing use.
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 SSC (Sulfide Stress Cracking) test results per NACE MR0175/ISO 15156
• Document exact wall thickness and ID; affects pressure rating declarations
• Use TSA (Threaded & Coupled Assembly) designation if applicable to distinguish from BTC couplings