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8482.91.00.10/Precision 52100 Alloy Steel Balls for Wafer Lapping Machine Spindles/Japan

Precision 52100 Alloy Steel Balls for Wafer Lapping Machine Spindles from Japan

Grade 5 precision 52100 chrome alloy steel balls for the main spindles in wafer lapping equipment that achieve sub-micron flatness on semiconductor wafers prior to device fabrication. Through-hardened for maximum fatigue resistance. HTS 8482.91.0010 for alloy steel bearing balls.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Specify 52100 chemical composition (1.0% Cr min) and hardness (Rc 60-66) in technical datasheets

• For sets of balls in bearing races, declare as individual parts unless permanently assembled

• Check quotas on high-precision alloy steel products from certain origins

Precision 52100 Alloy Steel Balls for Wafer Lapping Machine Spindles from Japan — Import Duty Rate | HTS 8482.91.00.10