Seamless 4.5-inch OD Nonalloy Line Pipe for Sour Gas Service from China
Specialized seamless steel pipe, 114 mm OD, designed for sour gas pipelines with H2S resistance, nonalloy composition per NACE standards. Under HTS 7304.19.10.20 for small-diameter seamless line pipe of iron/nonalloy steel used in gas pipelines. Critical for corrosive environments in gas fields.
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 NACE MR0175/ISO 15156 compliance certs for sour service to validate pipeline use
• Ensure no alloying elements exceed nonalloy thresholds (e.g
• <1.65% Cr)