Welded Carbon Steel Boiler Tube ASTM A178 from China
This welded carbon steel tube with circular cross section and wall thickness over 1.65 mm is specifically designed for use in fire-tube boilers to convey hot gases or water. It meets ASTM A178 standards for low-carbon steel suitable for high-pressure boiler applications. Classified under HTS 7306.30.5010 due to its welded construction and explicit suitability for boilers.
Duty Rate — China → United States
75%
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
9903.91.0125%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
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
• Verify ASTM A178 certification and wall thickness ≥1.65mm to confirm HTS 7306.30.50.10 classification; thinner walls shift to 7306.30.30
• Provide end-use documentation proving boiler suitability to avoid reclassification as general pipe under 7306.19
• Ensure hydrostatic test certificates for pressure applications to meet boiler code compliance