16 Inch OD API 5CT C90 Sour Service Alloy Tubing from Canada
Seamless C90 grade alloy steel tubing with 16-inch (406.4 mm) outside diameter, optimized for H2S-containing sour gas wells. Provides balanced strength and sulfide stress cracking resistance. HTS 7304.29.61.60 due to alloy steel composition, seamless process, and precise diameter for oil/gas drilling tubing.
Duty Rate — Canada → United States
10%
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
Import Tips
• Provide HIC (Hydrogen Induced Cracking) and SSCC test results per NACE TM0177 for sour service validation
• Confirm exact OD tolerance (±0.01 inch typical) stays within 215.9-406.4 mm bounds
• Avoid classification as casing if used strictly for production tubing applications