High-wear-resistance steel plate and production method thereof

Abstract

The invention provides a high-wear-resistance steel plate and a production method of the high-wear-resistance steel plate. The high-wear-resistance steel plate comprises, by weight, 0.30%-0.35% of C,1.0%-1.5% of Si, 3.5%-5.0% of Mn, 0.02%-0.04% of Nb, 0.10%-0.20% of Ti, not larger than 0.012% of P, not larger than 0.003% of S, not larger than 0.0040% of [N], not larger than 0.00015% of [H], not larger than 0.0020% of [O] and the balance Fe and inevitable impurities. The production method of the high-wear-resistance steel plate comprises the steps of smelting, continuous casting, heating and slow cooling, plate blank heating, controlled rolling and straightening. According to the high-wear-resistance steel plate, chemical components are simple, the alloy content is relatively low, the surface hardness of the steel plate is larger than 500 HB, the wear resistance is good, the section hardness is uniform, the maximum thickness can reach 50 mm, and the high-wear-resistance steel plate canmeet the use demand for thick wear-proof steel plates and does not need heat treatment.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates to a HB500 grade high wear resistance steel plate and a production method thereof. Background technique [0002] High-strength wear-resistant steel plates are widely used in vehicles, ships, mining equipment, engineering machinery and cement equipment. As classic wear-resistant steels, high-carbon and high-manganese series wear-resistant steels have been widely used for more than a hundred years. In the past two decades, in order to meet the needs of the development of mining and transportation machinery and construction machinery, low- and medium-alloy wear-resistant steels have been obtained due to their good wear resistance and toughness, simple production process, and reasonable comprehensive economy. rapid development and application. [0003] Brinell hardness HB500 grade is a kind of low-alloy wear-resistant steel, which has high surface hardness and wear resistance...

AI Technical Summary

Problems solved by technology

[0014] 1. The alloy is complex and the cost is high;

[0015] 2. The heat treatment process is complicated, and offline or online quenching and tempering are required;

[0016] 3. Only thickness below 30 mm can be produced;

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