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发明公开
CN110093557A 一种高强度建筑用耐候钢板及其生产方法 无效 - 驳回

一种高强度建筑用耐候钢板及其生产方法
摘要：
一种高强度建筑用耐候钢板，化学成分组成及质量百分含量为：C：0.06～0.09%，Si≤0.50%，Mn：1.00～1.35%，P≤0.020%，S≤0.010%，Ni：0.35～0.65%，Cr：0.15～0.30%，Cu：0.20～0.40%，Nb：0.020～0.035%，Ti：0.010～0.030%，Al：0.020～0.050%，其余为Fe和其它不可避免的杂质。其生产方法包括转炉冶炼、LF炉精炼、VD炉真空处理、连铸、轧制、堆垛缓冷工序；所述轧制工序，采用快冷速高返红工艺。所得钢板合金含量低，内部组织均匀，具有较高的强度和低温韧性，耐腐蚀性能优良，可广泛应用于各种大型结构工程上。
摘要（英）：

Disclosed is a weather-proof steel plate with high strength for construction. The steel plate comprises the following chemical components, by mass percentage: 0.06-0.09% of C, less than or equal to 0.50% of Si, 1.00-1.35% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.35-0.65% of Ni, 0.15-0.30% of Cr, 0.20-0.40% of Cu, 0.020-0.035% of Nb, 0.010-0.030% of Ti, and 0.020-0.050% of Al, with the balance being Fe and other unavoidable impurities. The production method includes converter smelting, LF furnace refining, VD furnace vacuum treatment, continuous casting, rolling, and stacking slow cooling processes. The rolling process adopts a fast cooling speed and high red return process. The obtained steel plate has low alloy content, uniform internal structure, high strength and low-temperature toughness and excellent corrosion resistance, and can be widely applied to various large-scale structural projects.

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