Copper Alloy Bearing Balls for Semiconductor Wafer Crystal Pullers from Germany
Precision copper alloy balls used in high-vacuum bearings of Czochralski crystal pullers for growing monocrystalline silicon boules in semiconductor manufacturing. These balls fall under HTS 8482.91.0015 as they are specifically balls of copper alloys as per statistical note 6 to chapter 84, intended for semiconductor processing equipment. Their non-magnetic properties and corrosion resistance suit cleanroom environments.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide documentation proving use in semiconductor manufacturing equipment per statistical note 6 to qualify for preferential treatment
• Ensure supplier certifications confirm copper alloy composition and semiconductor application
• Avoid misclassification by specifying end-use in commercial invoice