低成本海洋平台用钢E420的研制与开发  

Study and development of low-cost E420 offshore platform steel

作　　者：李鑫磊[1] 狄国标[2] 杨春卫[1] 田鹏[1] 田士平[1] 

机构地区：[1]秦皇岛首秦金属材料有限公司轧钢部,河北秦皇岛066326 [2]首都钢铁(集团)公司技术研究院,北京100043

出　　处：《钢铁研究》2012年第5期19-21,共3页Research on Iron and Steel

摘　　要：作为1种低成本生产E420级别海洋平台用钢的工艺路线,采用添加少量微合金元素的成分设计,利用超快冷技术,有效控制冷却过程以改善钢材的微观组织。采用以上工艺试制的50mm海洋平台钢板,获得了良好的综合力学性能,屈服强度大于445MPa,抗拉强度大于578MPa,-40℃冲击功大于200J。In this paper, technologies for producing E420 offshore platform steel with low-cost are introduced. The technologies include the chemical composition design of the steel with less microalloying elements, adopting high cooling rate to control the rolling process for better microstructure and mechanical properties of the steel. The trial production of 50 mm plate gained good results, for instance, the yielding strength and tensile strength reaches 445 MPa and 578 MPa respectively, and the impact energy at --40 ℃ is over 200 J.

关 键 词：海洋平台用钢 低成本 超快冷 显微组织 

分 类 号：TG142.2[一般工业技术—材料科学与工程]