7228.30.20.00 - Of ball-bearing steel

This HTS category, 7228.30.20.00, specifically classifies "other bars and rods of other alloy steel" that are not further worked than hot-rolled, hot-drawn, or extruded, and are made "of ball-bearing steel." Ball-bearing steel is a specialized alloy steel characterized by its high hardness, wear resistance, and ability to withstand high compressive loads, making it ideal for the manufacture of precision components like bearings. The classification hinges on the specific alloy composition and intended use of the steel bars and rods.

This category is distinguished from its siblings by its precise material specification. Unlike 7228.30.40.00, which covers chipper knife steel, or 7228.30.60.00, which encompasses all other remaining alloy steel bars and rods at this level, 7228.30.20.00 exclusively applies to those intended for ball bearing production. The key differentiator is the unique metallurgical properties and stringent quality requirements of steel destined for bearings.

As this is a leaf node, there are no further subcategories. Therefore, classification within this code requires a definitive confirmation that the alloy steel bars or rods possess the specific characteristics and chemical composition suitable for the manufacturing of ball bearings. Any deviation in alloy content or intended application would necessitate classification under a different HTS subheading.