D2 round bar is a high-carbon, high-chromium tool steel known for its hardness, wear resistance, and toughness. It contains 12-14% chromium, which provides excellent resistance to abrasion, making it ideal for demanding applications. Commonly used in the manufacturing of dies, molds, cutting tools, and shear blades, D2 round bars retain their hardness even at high temperatures. These bars are typically supplied in annealed form, making them easier to machine and shape. After heat treatment, D2 steel reaches high hardness levels, making it highly durable in applications that involve heavy-duty operations and harsh working conditions.