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发明公开
CN107805759A 一种低温用压力容器钢板及其制备方法 无效 - 驳回

一种低温用压力容器钢板及其制备方法
摘要：
本发明提供了一种低温用压力容器钢板及其制备方法，以该钢板的重量为基准，所述钢板含有按重量百分数计的以下化学成分：C：0.09～0.16％，Si：0.15～0.50％，Mn：0.85～1.70％，S：≤0.010％，P：≤0.020％，Ni：0.30～0.86％，Nb：≤0.05％，Cu：≤0.30％，V：≤0.05％，Als：0.015～0.080％，其余为Fe和不可避免的杂质，其中，各组分的含量均不为0；所述钢板的无塑性转变温度NDT＜-70℃。本发明的钢板耐低温性能良好：在-60℃以上温度具有较高韧性，钢板的冲击吸收能量KV2≥67J。
摘要（英）：

The invention provides a low-temperature pressure vessel steel plate and a preparation method thereof. The steel plate comprises the following chemical components of, by total weight, 0.09%-0.16% of C, 0.15%-0.50% of Si, 0.85%-1.70% of Mn, no more than 0.010% of S, no more than 0.020% of P, 0.30%-0.86% of Ni, no more than 0.05% of Nb, no more than 0.30% of Cu, no more than 0.05% of V, 0.015%-0.080% of Als and the balance Fe and inevitable impurities, wherein the content of each component is not zero. The nil-ductility transition temperature (NDT) of the steel plate is smaller than -70 DEG C. The low-temperature resistant performance of the steel plate is good, specifically, the steel plate has high toughness at the temperature of -60 DEG C or above, and the impact absorbed energy KV2 of the steel plate is larger than or equal to 67 J.

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