摘要
介绍了鞍钢2150ASP中薄板坯连铸连轧机组开发的10.75 mm厚低C含铬J55钢热轧卷板设计的难点和特点。该钢采用低C、低Mn、添加适量Cr元素、纯净钢冶炼,使P、S保持在较低水平。提高Mn/S比,控制拉坯速度,保证了连铸坯表面质量;产品符合美国石油学会标准API Spec 5CT的J55钢要求,且屈服强度低,波动范围窄,抗拉强度高,具有良好的耐低温冲击能力。
The difficulty and characteristic was introduced that low C and Cr-contained J55 steel hot rolled coil of 10. 75 mm thickness were developed in Angang 2150ASP thin-slab continuous casting and rolling production line. Chemical composition of the J55 steel was designed as low content of C and Mn and moderate content of Cr. The surface quality of slab continuous casting was guaranteed by making clean steel with low P and S, increasing Mn/S and controlling casting billet speed. Compared with the J55 steel in API SPEC 5CT specification, the yield strength of the tested J55 steel is low and has a narrow fluctuation range, the tensile strength is high and the low temperature toughness is preferable.
出处
《金属热处理》
CAS
CSCD
北大核心
2014年第2期26-29,共4页
Heat Treatment of Metals
关键词
低碳
含Cr
J55钢热轧卷板
力学性能
low carbon
Cr-containing
J55 steel hot rolled coil
mechanical properties
