API Spec 5CT C75 Tubing from Germany
C75 grade seamless nonalloy steel tubing per API 5CT for controlled yield oil/gas wells. Balances strength and ductility for drilling completions. HTS 7304.29.50 classification for nonalloy drill tubing.
Duty Rate — Germany → 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
• C75 requires special notch toughness testing—include impact test results
• Mark grade clearly; C75/C95 confusion common in mixed lots
• Trade agreements may offer duty relief for certified API products