SA-335 P11 Seamless Superheater Tube from Japan
Seamless low-alloy steel tube grade P11 (1.25% chromium, 0.5% molybdenum) with 12-inch (304.8 mm) OD, engineered for superheaters in power generation boilers. Classified under HTS 7304.59.20.70 for its alloy steel makeup, boiler suitability, and specified diameter range.
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
• Provide ASME certification and hydrostatic test results to prove boiler suitability; watch for alloy content thresholds to prevent shift to carbon steel headings; use precise OD caliper measurements for customs declaration