A high-grade wear-resistant steel plate and its production method

Abstract

The invention discloses a high-grade wear-resistant steel plate. The steel plate comprises the following components in percentage by mass: less than or equal to 0.26 percent of C, less than or equal to 0.50 percent of Si, less than or equal to 1.60 percent of Mn, less than or equal to 0.015 percent of P, less than or equal to 0.005 percent of S, 0.10 to 0.30 percent of Ni, less than or equal to 1.50 percent of Cr, less than or equal to 0.06 percent of Nb, 0.02 to 0.06 percent of Al, less than or equal to 0.03 percent of Ti, less than or equal to 0.50 percent of Mo, less than or equal to 0.08 percent of V, less than or equal to 0.004 percent of B, and the balance of Fe and inevitable impurities. A method for producing the steel plate comprises smelting, casting, heating, rolling, straightening, shot blasting, quenching, heat treatment, cutting and other process steps. The steel plate has the advantages of steel purity, high strength, high hardness, good low temperature toughness, good weldability, good processability, good cold bending property, large steel plate thickness, good plate cut, little noble metal added to the steel plate and low cost. The steel plate can be widely used in the industry of manufacturing mining, engineering, metallurgical and other machinery with broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of steel smelting, and in particular relates to a high-grade wear-resistant steel plate and a production method thereof. Background technique [0002] With the rapid development of economic construction, the market demand for high-strength and high-hardness wear-resistant steel plates is increasing, especially in industries such as coal mining machinery, engineering machinery, metallurgical machinery, road construction machinery and mining machinery. The current wear-resistant steel plate has the problem of low hardness level, which cannot meet the requirements of use, and its strength, toughness and weldability are also relatively poor. Contents of the invention [0003] The purpose of the present invention is to provide a high-grade wear-resistant steel plate. [0004] The object of the present invention is also to provide a production method of high-grade wear-resistant steel plate. [0005] In order ...

AI Technical Summary

Problems solved by technology

The current wear-resistant steel plate has the problem of low hardness level, which cannot meet the requirements of use, and its strength, toughness and weldability are also relatively poor.