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发明公开
CN110565027A 一种具备超高硬度及优良低温韧性的钢板及其生产方法 无效 - 驳回

一种具备超高硬度及优良低温韧性的钢板及其生产方法
摘要：
本发明公开了一种具备超高硬度及优良低温韧性的钢板及其生产方法，所述钢板化学成分组成及其质量百分含量为：C：0.36～0.42%，Si：≤0.40%，Mn：0.50～0.60%，P≤0.008%，S≤0.003%，Cr：0.20～0.35%，Mo：0.20～0.35%，Ni：1.00～1.20%，Al：0.020～0.040%，Nb：0.020～0.040%，余量为Fe和不可避免的杂质；所述生产方法包括冶炼、连铸、加热、轧制、轧后冷却和热处理工序。本发明钢板具有超高硬度、性能均匀的特点，完全适用于在低温、严重磨损恶劣的工况下服役的高耐磨性工件的制造。
摘要（英）：

The invention discloses a steel plate with ultra-high hardness and excellent low-temperature toughness and a production method thereof. The steel plate comprises the following chemical components in percentage by mass: 0.36-0.42% of C, less than or equal to 0.40% of Si, 0.50-0.60% of Mn, less than or equal to 0.008% of P, less than or equal to 0.003% of S, 0.20-0.35% of Cr, 0.20-0.35% of Mo, 1.00-1.20% of Ni, 0.020-0.040% of Al, 0.020-0.040% of Nb, and the balance Fe and inevitable impurities; and the production method comprises the steps of smelting, continuous casting, heating, rolling, cooling after rolling and heat treatment. The steel plate has the characteristics of ultra-high hardness and uniform performance, and is completely suitable for manufacturing high-wear-resistance workpieces serving under bad working conditions of low temperature and severe wear.

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