Beryllium Copper Diaphragm Strip from China
High-formability beryllium copper strip for pressure diaphragms in instrumentation and aerospace sensors. Classified in HTS 7409.90.90.30 as beryllium copper alloy with thickness >0.15 mm to <5 mm and width <500 mm. Excels in fatigue strength for cyclic loading.
Duty Rate — China → United States
38%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Submit material safety data for beryllium handling; OSHA/EPA declarations often required
• Confirm flatness specs in documentation; warped strip risks rejection at thickness gauge
• Use ISPM-15 compliant packaging for coils to avoid fumigation delays