Alloy Steel Seamless Boiler Tube ASTM A335 P11 from China
This seamless tube made from 1.25% chromium-molybdenum alloy steel (ASTM A335 P11 grade) is designed for high-pressure boiler applications, with a wall thickness exceeding 4 mm. It falls under HTS 7304.90.30.00 as a seamless tube of alloy steel with thick walls, suitable for elevated temperature service in power plants.
Duty Rate — China → United States
57.5%
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
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
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 alloy steel composition meets ASTM A335 standards and obtain mill test certificates for customs valuation
• Ensure wall thickness documentation is precise, as thinner walls shift to 7304.19 or 7304.59