AISI 52100 Ball-Bearing Steel Cold-Finished Round Bar from China

A cold-finished round bar made from AISI 52100 alloy steel, specifically formulated for ball-bearing applications with precise control of carbon (0.95-1.13%), chromium (1.25-1.65%), and low sulfur/phosphorus levels as defined in HTS Chapter 72 note (h). It is not further worked beyond cold-finishing, classifying it under 7228.50.1010 as a bar of ball-bearing steel. This steel provides exceptional hardness and wear resistance for bearing components.

Duty Rate — China → United States

35%

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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter

Import Tips

Provide mill test certificates confirming ball-bearing steel composition per HTS note (h) to avoid reclassification

Ensure documentation specifies cold-formed/cold-finished state with no further working like polishing or coating

Verify exact alloy analysis at entry; deviations may shift to general tool steel under 7228.50.3015