7225.40.51.10 - Of high-speed steel

This HTS category, 7225.40.51.10, specifically classifies flat-rolled products of other alloy steel, not further worked than hot-rolled, not in coils, and less than 4.75 mm in thickness, that are manufactured from high-speed steel. High-speed steel is characterized by its ability to retain hardness at high temperatures, making it suitable for cutting tools and other applications requiring extreme wear resistance and heat endurance.

This classification is distinguished from its siblings primarily by its material composition. While 7225.40.51.30 covers products made of ball-bearing steel, and 7225.40.51.60 encompasses other alloy steels not fitting the specific definitions of high-speed or ball-bearing steel, this category is exclusively for those employing high-speed steel. The underlying physical characteristics (flat-rolled, hot-rolled, not in coils, and thickness) are common to all siblings at this level.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, classification within this code hinges on accurately identifying the material as high-speed steel, based on its chemical composition and intended metallurgical properties, in conjunction with the established physical dimensions and processing methods outlined in the parent categories.