490 MPa建筑用低屈强比耐火热连轧带钢的研制
Development of 490 MPa Grade Low Yield Ratio Hot-strip with Fire-resistant for Construction
孙 莹, 于庆波
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作者单位:(徐州工程学院 机电工程学院, 江苏 徐州 221008)
中文关键字:低屈强比; 耐火钢; 490 MPa; 高层建筑
英文关键字:low yield ratio; fire-resistant steel; 490 MPa; high-rise building
中文摘要:通过控轧控冷(TMCP)的方法,开发出490 MPa级高层建筑用低屈强比耐火热连轧带钢。结果表明,该钢种具有强度高,屈强比低,耐火性能强及焊接性能优良等特点,完全能够达到日本JIS3136标准要求。
英文摘要:490 MPa grade low yield ratio hot-strip with fire-resistant for construction was investigated by thermo-
mechanical control process. The results show that the steel has high strength, low yield ratio, powerful fire-resistant and good welding performance, so it can completely satisfy the request of JIS3136 standard of Japan.