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Corrosion-resistant high-strength high-toughness alloy tool steel and heat treatment method and production method thereof

A technology of alloy tool steel and heat treatment method, which is applied in the field of corrosion-resistant, high-strength, high-toughness alloy tool steel and its heat treatment, and can solve the problem that alloy tool steel wire rod does not have toughness, products and achievements are blank, and there are few high-strength and high-toughness materials, etc. problems, to achieve the effect of excellent wear resistance, good wear resistance, good strength and plastic toughness

Active Publication Date: 2021-07-23
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The shortcoming of this method is that the final structure of the wire rod produced is martensite with poor plasticity, and the alloy tool steel wire rod does not have good toughness
[0006] To sum up, although there are many studies on alloy tool steel products in my country and the products are relatively mature, there are few high-strength and high-toughness materials that take into account corrosion resistance, and their products and achievements are almost blank

Method used

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  • Corrosion-resistant high-strength high-toughness alloy tool steel and heat treatment method and production method thereof
  • Corrosion-resistant high-strength high-toughness alloy tool steel and heat treatment method and production method thereof
  • Corrosion-resistant high-strength high-toughness alloy tool steel and heat treatment method and production method thereof

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Embodiment Construction

[0048] The corrosion-resistant, high-strength and high-toughness alloy tool steel provided by the invention contains the following chemical components by weight percentage: C 0.70%-1.00%, Si 0.80%-1.10%, Mn 0.50%-0.80%, Cr 0.50%-0.80%, Mo0.30%~0.50%, V 0.20%~0.40%, Nb 0.020%~0.040%, Ti 0.030%~0.050%, Ni0.15%~0.35%, Cu 0.15%~0.35%, Re 0.05%~0.25% , P trace ~0.015%, S trace ~0.015%, O≤0.0015%, N≤0.006%. The rest is Fe and other unavoidable impurities; among them, 0.50W+0.50Mo+0.26Cr+V+Nb≤1.5C.

[0049] The production method of alloy tool steel with corrosion resistance, high strength and high toughness includes the following steps: electric furnace smelting → LF furnace refining → RH or VD vacuum degassing → bloom continuous casting → billet rolling → finishing peeling → heating → high-speed wire rod controlled rolling Manufacturing→Stelmore cooling by wire controlled cooling→Finished wire rod and wire rod→Spheroidizing annealing→Quenching→Tempering;

[0050] Among them, in th...

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Abstract

The invention discloses corrosion-resistant high-strength high-toughness alloy tool steel and a heat treatment method and a production method thereof. The corrosion-resistant high-strength high-toughness alloy tool steel comprises the following chemical components of, in percentage by weight, 0.70%-1.00% of C, 0.80%-1.10% of Si, 0.50%-0.80% of Mn, 0.50%-0.80% of Cr, 0.30%-0.50% of Mo, 0.20%-0.40% of V, 0.020%-0.040% of Nb, 0.030%-0.050% of Ti, 0.15%-0.35% of Ni, 0.15%-0.35% of Cu, 0.05%-0.25% of Re, trace amounts of P, S, O and N and the balance Fe and other inevitable impurities, wherein 0.50 W + 0.50 Mo + 0.26 Cr + V + Nb < = 1.5 C. The discloses corrosion-resistant high-strength high-toughness alloy tool steel has good strength, plasticity and toughness, wear resistance, impact resistance and corrosion resistance, and can meet the use requirements.

Description

technical field [0001] The invention belongs to the technical field of tool steel, and in particular relates to a corrosion-resistant, high-strength, high-toughness alloy tool steel, a heat treatment method and a production method thereof. Background technique [0002] Tool steel is a type of steel used to manufacture various cutting tools, measuring tools, molds and wear-resistant tools, and is widely used in various industries such as machinery manufacturing. Due to its use characteristics, tool steel is required to have high strength, high hardness, high red hardness, high toughness, high wear resistance, high fatigue performance, etc. after heat treatment. According to the chemical composition, tool steel can be divided into carbon tool steel, alloy tool steel and high-speed tool steel. Alloy tool steel has better hardenability than carbon tool steel due to the addition of alloy elements such as Cr, Mo, W, V, etc. Hardenability, wear resistance and toughness have a wide...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/46C22C38/48C22C38/50C22C38/42C21D1/18C21D1/32C21D8/06
CPCC22C38/02C22C38/04C22C38/44C22C38/46C22C38/48C22C38/50C22C38/42C22C38/005C21D1/18C21D1/32C21D8/065C21D2211/008
Inventor 张晓瑞汪开忠于同仁姜婷尹德福龚梦强郭湛丁雷余良其孙凯许文喜
Owner MAANSHAN IRON & STEEL CO LTD
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