知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN106676402A 含铬钛耐大气腐蚀型钢钢水和耐大气腐蚀型钢及其生产方法 有权

含铬钛耐大气腐蚀型钢钢水和耐大气腐蚀型钢及其生产方法
摘要：
本发明涉及炼钢领域，具体提供了一种耐大气腐蚀型钢钢水，以钢水的总重量为基准，钢水含有：0.01％-0.09％的C，0.15％-0.35％的Si，0.30％-0.60％的Mn，0.30％-0.40％的Cu，0.20％-0.30％的Ni，2.0％-3.5％的Cr，0.06％-0.12％的V，0.005％-0.030％的Ti，0.004％-0.008％的N，不大于0.030％的P和不大于0.020％的S。本发明提供了一种耐大气腐蚀型钢及其生产方法。采用本发明的钢水连铸可以改善铸坯的中心质量，避免出现中心裂纹和中心缩孔，由此可提高高强度高耐大气腐蚀型钢铸坯的质量，铸坯合格率可大幅度提高；并且最终得到的耐大气腐蚀型钢耐大气腐蚀能力好且具备更高的强度性能。
摘要（英）：

The invention relates to the field of steel production, and concretely provides atmosphere corrosion-resistant section molten steel. By metering the total weight of molten steel as a reference, the atmosphere corrosion-resistant section molten steel contains 0.01-0.09% of C, 0.15-0.35% of Si, 0.30-0.60% of Mn, 0.30-0.40% of Cu, 0.20-0.30% of Ni, 2.0-3.5% of Cr, 0.06-0.12% of V, 0.005-0.030% of Ti, 0.004-0.008% of N, and no greater than 0.030 of P and no greater than 0.020% of S. The invention provides atmosphere corrosion-resistant section steel as well as a production method thereof. According to the invention, continuous casting of the molten steel can improve the inner quality of casting blank, avoids the inner cracking and inner cavity shrinkage, so as to increase the quality of the high-intensity high atmosphere corrosion-resistant section steel casting blank, and greatly increases the qualified rate of the casting blank; so that the obtained atmosphere corrosion-resistant section steel has good atmosphere corrosion-resistant capability and higher intensity performance.

公开/授权文献
0/0