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发明公开
CN103060685A 一种罐车用17MnNiVNbDR钢板及其生产方法 无效 - 撤回

一种罐车用17MnNiVNbDR钢板及其生产方法
摘要：
本发明涉及一种罐车用17MnNiVNbDR钢板及其生产方法，属于罐车专用钢技术领域。技术方案是：由以下重量百分含量的化学成分组成为：C：0.17%-0.19%，Si：0.30%-0.45%，Mn：1.55%-1.65%，P≤0.010%，S≤0.002%，Ni：0.35%-0.40%，Nb：0.03%-0.04%，V：0.095%-0.105%，N：0.014%-0.020%，Al总：0.02%-0.05%，余量为Fe和不可避免的杂质。该钢板的生产方法包括以下步骤：冶炼→LF/VD精炼→浇铸→加热→轧制→冷却→正火→回火→成品钢板。本发明的正火型高强度罐车用钢板的厚度为8mm-25mm，该钢板的致密性高，强度高，低温冲击韧性好，焊接性能良好，能够满足罐车及集装箱用钢的要求，用于公路罐车、船用集装箱及铁路罐车等领域。
摘要（英）：

The invention relates to a 17MnNiVNbDR steel plate for a tank car, and its production method, and belongs to the technical field of special steel for the tank car. A technical scheme adopted in the invention is characterized in that the 17MnNiVNbDR steel plate comprises 0.17-0.19wt% of C, 0.30-0.45wt% of Si, 1.55-1.65wt% of Mn, 0.010wt% or less of P, 0.002wt% or less of S, 0.35-0.40wt% of Ni, 0.03-0.04wt% of Nb, 0.095-0.105wt% of V, 0.014-0.020wt% of N, 0.02-0.05wt% of total Al, and the balance Fe and inevitable impurities. The production method of the steel plate comprises the steps of smelting, LF/VD refining, casting, heating, rolling, cooling, normalizing, and tempering to obtain the finished steel plate. The steel plate for the normalizing high-strength tank car has a thickness of 8-25mm, has the advantages of high compactness, high strength, good low temperature impact toughness and good weldability, can satisfy the steel requirements of the tank car and a container, and can be used in the fields of road tank cars, boat containers, railway tank cars and the like.

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