D2 is a classic high-carbon, high-chromium tool steel originally developed for industrial dies and cutting tools. It offers excellent wear resistance and long edge life due to its large carbide structure and high carbon content. Although it contains significant chromium, it is generally considered semi-stainless because it can still rust if neglected. D2 remains popular for production and custom knives thanks to its strong cutting performance and affordability compared to premium PM steels.
优点
- Excellent edge retention
- High wear resistance
- Good hardness potential
- Widely available and affordable
- Suitable for hard-use cutting tasks
