API Spec 5CT C75 Tubing from Japan
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 — Japan → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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