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4-1/2 inch 14.6 lb/ft 13Cr Stainless Steel Casing from China

Seamless 13Cr (13% chromium) stainless steel casing with 114.3 mm OD and 15.2 mm wall thickness, used in slim-hole oil and gas wells for corrosion resistance. Classified under HTS 7304.24.4020 for its stainless steel composition, seamless production, small diameter casing application, and thick wall exceeding 12.7 mm. Ideal for high-pressure, corrosive formations.

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 and PMI (Positive Material Identification) tests confirming 13Cr stainless steel alloy to avoid reclassification

Document exact wall thickness measurement method (e.g

ultrasonic) as Customs may inspect for ≥12.7 mm compliance