Precision 52100 Alloy Steel Balls for Wafer Lapping Machine Spindles from Mexico
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 — Mexico → United States
14.4%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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