A kind of magnetic stainless steel material and preparation method thereof

Abstract

The invention provides a magnetic stainless steel material. The magnetic stainless steel material comprises the following chemical element components in percentage by weight: 2.0-2.3% of carbon, 1.2-.1.5% of manganese, 7.0-7.5% of chromium, 0.4-0.5% of molybdenum, 1.0-1.2% of titanium, 2.1-2.2% of silicon, 3.0-3.3% of nickel, 0.2-0.4% of tungsten, 0.004-0.005% of stibium, 0.03-0.05% of neodymium, less than or equal to 0.030% of P, less than or equal to 0.030% of S and the balance of iron. The material, which is prepared from a combination of the rare earth element neodymium and other raw materials by virtue of rational ratio and production process setting and rational feeding order setting, is excellent in comprehensive mechanical properties, and especially has the characteristics of high strength and hardness, wonderful wear resistance and the like, and also has permanent magnetism; besides, waste iron is taken as one part of the raw materials so that the quality of the alloy is stable and uniform; a refining agent is added so that the porosity is reduced by 1-2 degrees.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a magnetic stainless steel material and a preparation method thereof. Background technique [0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been used in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high-speed steel, die steel, high school Low carbon alloy steel, etc. So far, although alloy steel technology has been greatly developed, there are still many problems, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, Costs cannot be taken into account. In many cases, the requirements of production cannot be met. Further improvements are needed to improve production efficiency, reduce costs, improve safety, provide guarantee for the development of high-precision techno...

AI Technical Summary

Problems solved by technology

[0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc., so far, although alloy steel technology has been greatly developed, there are still many problems, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, Costs cannot be taken into account. In many cases, the production requirements cannot be met, and further improvements are needed to improve production efficiency, reduce costs, improve safety, provide guarantee for the development of high-tech, and provide impetus for social development. There are still many tasks to be done. difficult