Novel AGM7 high-speed steel material and production process thereof

Abstract

The invention provides a novel AGM7 high-speed steel material and a production process thereof. A GB standardized molecular formula of the novel AGM7 high-speed steel material is W2Mo5Cr4V, wherein the novel AGM7 high-speed steel material consists of the following components in percentage by mass: 0.79%-0.92% of C, less than or equal to 1.20% of Si, less than or equal to 0.60% of Mn, 0%-0.030% of P, 0%-0.030% of S, 1.15%-2.20% of W, 4.50%-6.75% of Mo, 3.80%-4.90% of Cr, 1.15%-2.20% of V, less than or equal to 1.20% of Co, less than or equal to 1.20% of Al, less than or equal to 0.25% of Ni, less than or equal to 0.35% of Cu, less than or equal to 0.55% of Ni+Cu, and the balance Fe. Performances of the novel AGM7 high-speed steel material are considerable to those of a M42 steel material; and the novel AGM7 high-speed steel material does not contain an element Co or a micro element Co, is relatively low in price, and facilities national protection on precious metal resources.

Description

[0001] This application claims the priority of a Chinese patent application with an application date of May 16, 2016, an application number of 201610322381.4, and an invention title of "New High Speed ​​Steel Material and Its Preparation Process", the entire contents of which are incorporated by reference in this application. technical field [0002] The invention relates to a steel material and a production process thereof, in particular to a novel AGM7 high-speed steel material and a production process thereof, which can replace M42 in the thread tool industry, and has cost and life advantages superior to M42. Background technique [0003] M42 steel is an existing high-speed steel material, which is mainly used for precision and high wear-resistant metal cold stamping dies, and can also be used for precision cutting tools. It has the characteristics of high temperature hardness and high precision of processed workpieces. However, the existing M42 steel has a high requiremen...

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Problems solved by technology

However, Co is a precious metal, which not only leads to a higher price of M42 steel, but also is not conducive to the country's protection of precious metal resources.

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