A kind of high-strength wear-resistant steel plate and its production method

A technology of wear-resistant steel plates and production methods, which is applied in the field of steelmaking, can solve the problems of low hardness of wear-resistant steel plates, and achieve the effects of good welding performance, uniform strength, and good toughness

Active Publication Date: 2018-01-02
NANYANG HANYE SPECIAL STEEL CO LTD
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Problems solved by technology

But, the hardness of above-mentioned patent wear-resistant steel plate is lower

Method used

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  • A kind of high-strength wear-resistant steel plate and its production method
  • A kind of high-strength wear-resistant steel plate and its production method
  • A kind of high-strength wear-resistant steel plate and its production method

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with some specific embodiments.

[0043] The chemical composition and weight percentage of the 550-grade high-strength wear-resistant steel plate in Examples 1-8 of the present invention are shown in Table 1 below.

[0044] Table 1 Chemical composition (wt%) of the high-strength wear-resistant steel plates of Examples 1-8 of the present invention and Comparative Examples 1-3

[0045]

[0046] The production method of the high-strength wear-resistant steel plate in the above-mentioned embodiment 1 includes the following steps: KR molten iron pretreatment, converter smelting, argon station adding aluminum line, LF furnace refining, VD refining, continuous casting, heating, controlled rolling and controlled cooling, stack cooling ;

[0047] In the KR molten iron pretreatment step: the slag before and after the slag is removed from the molten iron at the station, the thickness of the slag layer on the ...

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Abstract

The invention belongs to the technical field of steelmaking, in particular to a high-strength abrasion-resistant steel plate and a production method thereof. The high-strength abrasion-resistant steel plate comprises the following chemical components in percentage by weight: 0.09-0.11% of C, 0.68-0.74% of Si, 1.06-1.13% of Mn, less than or equal to 0.016% of P, less than or equal to 0.005% of S, 0.022-0.038% of Al, 0.50-0.55% of Cr, 0.85-0.95% of Mo, 0.35-0.44% of W, 0.06-0.07% of Nb, 0.67-0.77% of Ni, 0.003-0.004% of Ca and the balance of Fe and inevitable impurities. The high-strength abrasion-resistant steel plate is high in hardness, good in low-temperature impact toughness and excellent in comprehensive performance, and is especially suitable for use at cold weather conditions.

Description

technical field [0001] The invention belongs to the technical field of steelmaking, and in particular relates to a high-strength wear-resistant steel plate and a production method thereof. Background technique [0002] The wear-resistant steel plate has high wear resistance and good impact performance, and can be cut, bent, welded, etc., and can be connected with other structures by welding, plug welding, bolt connection, etc., which saves time in the process of repairing the site , convenience and other characteristics, widely used in metallurgy, coal, cement, electric power, glass, mining, building materials, bricks and tiles and other industries. [0003] The hardness of traditional low-alloy high-strength wear-resistant steel is 300-500HB. However, for extremely cold weather conditions, especially when in contact with high-hardness rocks and mineral materials, low-grade wear-resistant steel plates can no longer meet the use requirements. Wear-resistant steel plates with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/18C22C38/12C22C38/08C22C38/06C22C38/04C22C38/02C22C33/04
CPCC22C33/04C22C38/002C22C38/02C22C38/04C22C38/06C22C38/08C22C38/12C22C38/18
Inventor 许少普刘庆波朱书成李忠波康文举高照海
Owner NANYANG HANYE SPECIAL STEEL CO LTD
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