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发明公开
CN110079742A 一种高塑性热轧核电用钢板及其生产方法 无效 - 撤回

一种高塑性热轧核电用钢板及其生产方法
摘要：
本发明属于冶金技术领域，涉及一种高塑性热轧核电用钢板及其生产方法，所述钢板化学成分组成及质量百分含量为：C：0.12～0.14%，Si≤0.35%，Mn:1.30～1.40%，P≤0.010%，S≤0.005%，Nb：0.010～0.020%，其余为Fe及不可避免的杂质。所述生产方法包括加热、开坯轧制、再次加热、Ⅱ阶段控制轧制、ACC水冷、矫直工序。本发明通过对钢板成分、轧制和ACC水冷工艺进行调整，改善了钢板的中心偏析，提高了钢板内部晶粒度，满足了高塑性钢板的需求。
摘要（英）：

The invention belongs to the technical field of metallurgy, and relates to a high-ductility hot rolling nuclear steel plate and a production method thereof. The steel plate comprises, by mass percent,0.12 to 0.14% of C, not larger than 0.35% of Si, 1.30 to 1.40% of Mn, not larger than 0.010% of P, not larger than 0.005% of S, 0.010 to 0.020% of Nb, and the balance Fe and inevitable impurities. The production method comprises the steps of heating, cogging rolling, secondary heating, II-stage controlled rolling, ACC water cooling and straightening. Through adjusting of steel plate components, rolling and ACC water cooling process, the center segregation of the steel plate is improved, the steel plate inner grain size is improved, and high-ductility steel plate needs are met.

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