Precision 52100 Alloy Steel Balls for Wafer Lapping Machine Spindles from Germany
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 — 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
• 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