【作者】 宋立秋； 侯豁然； 左军； 佘广夫； 刘清友； 王义成； 张开坚； 董瀚；

【Author】 Song Liqiu Hou Huoran Zuo Jun She GuangfuLiu Qingyou Wang Yicheng Zhang Kaijian Dong Han Iron and Steel Research Institute of Panzhihua Iron and Steel (Group) Co. Central Iron and Steel Research Institute

【机构】 攀枝花钢铁(集团)公司钢铁研究院； 钢铁研究总院；

【摘要】 在攀钢1450热连轧机上,用Q235普碳钢成分生产出了具有超细晶粒的SP52热轧钢板。SP52热轧钢板的晶粒尺寸达到4-6μm,抗拉强度和屈服强度分别达到510MPa以上和400 MPa以上,钢板具有良好的冷弯成型性能和较高的冲击韧性。攀钢生产的SP52超细晶粒钢在东汽用于生产载重汽车车厢零件,完全能够满足汽车用钢的要求。更多还原

【Abstract】 SP52 ultra-fine grain hot rolling sheets which have Q235 composition were produced in Pansteel 1450 industrial mill. Microstructures and mechanical properties of SP52 hot rolling sheets with ultra-fine grain were studied. Ferrile grain size is about 4-6μm. The tensile strength is over 510MPa, the yield strength is over 400MPa. Sheets obtain excellent cold bending properties, high impact properties. SP52 hot rolling sheets with ultra-fine grain can be meet the requirements of the coach parts in Dongfeng company.更多还原