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Novel high-speed steel material and preparation process thereof

A high-speed steel and a new type of technology, applied in the field of new high-speed steel materials and their preparation processes, can solve the problems of high steel prices and unfavorable protection of precious metal resources, and achieve the effect of low prices

Inactive Publication Date: 2016-07-13
昆山双儒模具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the embodiments, but it should be noted that these embodiments are not limitations of the present invention, and those of ordinary skill in the art may perform equivalent transformations or substitutions in terms of functions, methods, or structures based on these embodiments. All belong to the protection scope of the present invention.

[0046] The invention provides a novel high-speed steel material to replace the existing M42 steel, which comprises:

[0047] C: 0.85%~0.92%; Si: 0.70%~1.10%; Mn: 0.20%~0.50%; P: 0%~0.030%; S: 0%~0.030%; W: 1.20%~2.20%; Mo: 4.50%~6.75%; Cr: 3.80%~4.50%; V: 1.20%~2.20%; Ni and Cu: 0%~0.55%.

[0048] As a preferred embodiment, the new high-speed steel material of the present invention includes: C: 0.88%~0.91%; Si: 0.90%~1.00%; Mn: 0.30%~0.40%; P: 0%~ 0.025%; S: 0%~0.015%; W: 1.20%~1.35%; Mo: 4.90%~5.20%; Cr: 3.95%~4.10%; V: 1.85%~2.20%; Ni: 0%~0.25% ; Cu: 0%~0....

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Abstract

The invention provides a novel high-speed steel material and a preparation process thereof. The novel high-speed steel material has cost and service life advantages in the industries of cylindrical die rolls and nut punching dies, thereby being capable of replacing M42. The novel high-speed steel material comprises the following materials in percentage by mass: 0.85-0.92% of C, 0.70-1.10% of Si, 0.20-0.50% of Mn, 0-0.030% of P, 0-0.030% of S, 1.20-2.20% of W, 4.50-6.75% of Mo, 3.80-4.50% of Cr, 1.20-2.20% of V, 0-0.55% of Ni and 0-0.55% of Cu, namely, less than or equal to 0.25% of Ni and less than or equal to 0.35% of Cu. The performance of the novel high-speed steel material is equivalent to that of the M42 steel material, the novel high-speed steel material does not contain the Co element, has a relatively low cost and is beneficial for protection of national precious metal resources.

Description

technical field [0001] The invention relates to a steel material and a preparation process thereof, in particular to a novel high-speed steel material and a preparation process thereof. The new high-speed steel material has cost and life advantages that can replace M42 in the thread rolling wheel industry and the nut die industry. Background technique [0002] 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 requirement for Co content, and the M42 steel contains 8% cobalt, that is, 1 ton of M42 needs 80 kg of cobalt element. 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. [0003] Theref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/18C22C38/02C22C38/04C22C38/12C22C38/08C22C38/16C21D8/00
CPCC22C38/18C21D8/005C22C38/02C22C38/04C22C38/08C22C38/12C22C38/16
Inventor 周文宝
Owner 昆山双儒模具科技有限公司
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