HY-80 High-Yield Submarine Hull Steel Plate from China
HY-80 nickel-chromium-molybdenum alloy steel plate (width 800 mm) for naval submarine hull construction, yield strength 80 ksi. HTS 7225.99.0090 covers this military-grade other alloy steel flat-rolled product. Multi-element alloy composition.
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
• ITAR/export control documentation likely required for military end-use
• Yield strength certification but classification by chemistry, not strength
• Avoid disclosing end-use if sensitive; classify by material specs only