Cr12MoV is an ultra-hard bearing steel or cold working steel, which is characterized by high wear resistance and high temperature strength. It is commonly used in bearings, molds and other wear-resistant components.
Cr12MoV is a kind of high-carbon alloy cold work die steel. It has good hardenability, wear resistance and toughness. It also has good corrosion resistance and long-term work hardening ability. It is used for making tools and dies requiring both wear resistance and wear resistance, such as cold heading dies for riveting, drawing dies for steel wire and thread rolling dies for rolling threads. It can also be used for making tools with wear-resistant cutting edges and tools for working on hard metals.
The main alloying elements of Cr12MoV are: Cr, Mo and V. The content of Cr is high (11-13%), Mo is moderate (0.40-0.60%) and V is low (0.30-0.50%). The addition of V can refine the austenite grains, reduce the degree of quenching deformation, improve the toughness of the steel and reduce the impact of the working die. In the structure of steel, Cr overcomes the brittleness of high molybdenum content and increases the strength, wear resistance and hardness. Mo increases the hardenability of steel and has strong tempering effect.
Cr12MoV has good comprehensive performance, high hardness and wear resistance, good polishability and good machinability after heat treatment. The surface hardness after quenching can reach HRC60 or more. The wear resistance of Cr12MoV is much better than that of 4Cr5MoSiV1 steel. Besides, it has good thermal fatigue resistance and corrosion resistance, and can be used for long-term production under the environment of normal temperature and intermittent heating.The main application of Cr12MoV is for the production of cold working dies for riveting, drawing of steel wire, thread rolling of threads and cold heading of nail heads and other wear—resistant parts.
Cr12MoV steel is also used for making stamping dies, cold cutting knives and woodworking knives. It is widely used in aviation industry, automotive industry, precision instrument industry, medical instrument industry, electronic industry and all kinds of complex shape molds. It is also used for making drill bits, shear blades, saw blades, planar cutting blades, punches and other wear—resistant parts.
In conclusion, Cr12MoV is a high-carbon alloy steel with good wear resistance, long-term work hardening ability and excellent corrosion resistance. It is mainly used for making cold working dies, stamping dies, knives and molds for precision instruments and other wear-resistant parts. Owing to its superior performance, it is widely used in various industries such as aviation, automotive and precision instruments.
