摘要
采用转炉-LF及RH精炼生产的P20钢,经控轧+正火+回火处理,化学成分、显微洁净度均达到较高水平,钢板的硬度满足用户使用要求。
The chemical compositions and micro-cleanliness of P20 steel manufacture by converter steelmaking-LF and RH refining can reach high quality level by controlled-rolling＋ normalizing ＋ temper-ing treatment, and the hardness of steel plate can meet the service requirements of Customers.
