580MPa-grade low-cost nano precipitation type high-reaming alloy as well as preparation method and application thereof

The invention relates to the technical field of metallurgy, in particular to a 580MPa-grade low-cost nano precipitation type high-reaming alloy and a preparation method and application thereof. The key of the high-reaming alloy provided by the invention is that under the design of low content of C and Si, a pure ferrite matrix structure is obtained in combination with low content of N, high plasticity and high reaming performance are realized, and high reaming rate is achieved while high percentage elongation after fracture is maintained. The preparation method of the high-reaming alloy provided by the invention is easy to control, preparation can be carried out by taking each component raw material as a starting point in practical application, and the preparation method comprises the specific steps of converter smelting, LF refining, RH vacuum treatment, continuous casting, heating, rough rolling, finish rolling, laminar cooling and coiling, and through accurate heating, front-section rapid cooling and mediu