Explanation

non-alloy steel suitable for making various tools and moulds. T is added before steel designation to indicate carbon tool steel (GB/T1298-2008). According to metallurgical quality, it can be divided into high-quality carbon X steel and special quality carbon tool steel. Carbon T. steel has a high carbon content and belongs to eutectoid or hypereutectoid steel steel. About 0.5% manganese can be added to improve hardenabilhy (but it is still classified as non-alloy steel). After quenching and low-temperature annealing treatment, the workpiece surface has high strength, hardness and wear resistance. It has good cold and hot workability and low price, so it is widely used. However, due to poor hardenabilhy, it is generally only used to make small tools and molds with small size and low working temperature (generally below 200 ° C).

Classification