High-carbon high-vanadium wear-resistant steel and preparation method thereof

The invention provides high-carbon high-vanadium wear-resistant steel. The high-carbon high-vanadium wear-resistant steel is prepared from the following chemical components in percentage by mass: 2.0to 3.0% of C, 3.5 to 5.0% of W, 2.0 to 4.0% of Mo, 4.0 to 5.0% of Cr, 7.0 to 9.0% of V, and the balance of iron; the carbide composition of the high-carbon high-vanadium wear-resistant steel is MC carbide and M6C carbide, wherein the type of the MC carbide is VC. The high-vanadium wear-resistant steel provided by the invention has a uniform microstructure, excellent wear resistance, hardness and processing structure property, and wide application. The cost of the preparation method provided by the invention is lower than that of a powder metallurgy process, and the production cost is reduced wholly. 本发明提供了种高碳高钒耐磨钢，其化学组分按质量百分比计包括：C：2.0-3.0％，W：3.5-5.0％，Mo：2.0-4.0％，Cr：4.0-5.0％，V：7.0-9.0％，余量为铁；所述高碳高钒耐磨钢的碳化物组成为MC碳化物和MC碳化物，其中MC碳化物的类型为VC。本发明所述的高钒耐磨钢的具有均的显微组织结构，具备优异的耐磨性能、硬度和加工组织性，用途广泛。本发明的制备方法成本低于粉末冶金工艺，整体降低了生产成本。