The Study on 400 MPa Class Plain Carbon Structure Steel
来源期刊：材料保护2004年增刊第2期
论文作者：DU Lin-xiu WANG Guo-dong LI Wei-juan ZHANG Hong-mei LI Sheng-li
关键词：plain carbon structure steel; ferrite; recrystallization; transformation; yield strength;
摘 要：New generation of structure steel has been developed to meet the uninterruptedly increasing needs of the economic construction and development of society, and such material is characterized by ultra-fine grain. In this paper, 400MPa class plain carbon structure steel has been studied, making its yield strength doubled and service life doubled on the basis of good comprehensive properties in large quantity utilization. The deformation behavior and the stain induced transformation of SS400 steel at different temperature were investigated in the laboratory, and the industrial rolling test was carried out in 2 050mm HSM of Baosteel. Not only the laboratory studies but also the industrial test show that the technical route of the experimentis correct and the industrial test results on the basis of low carbon plain steel indicate that the grain size of ferrite was near to 4 ～ 5 μm, elongation was more than 30% , impact property was good, the yield strength can reach 400 MPa.
DU Lin-xiu1，WANG Guo-dong1，LI Wei-juan2，ZHANG Hong-mei2，LI Sheng-li2
(1.State Key Lab of Rolling and Automatic, Northeastern University, Shenyang 110006, P.R. China;
2.Anshan science and technology university, Anshan 114044)
摘要:New generation of structure steel has been developed to meet the uninterruptedly increasing needs of the economic construction and development of society, and such material is characterized by ultra-fine grain. In this paper, 400MPa class plain carbon structure steel has been studied, making its yield strength doubled and service life doubled on the basis of good comprehensive properties in large quantity utilization. The deformation behavior and the stain induced transformation of SS400 steel at different temperature were investigated in the laboratory, and the industrial rolling test was carried out in 2 050mm HSM of Baosteel. Not only the laboratory studies but also the industrial test show that the technical route of the experimentis correct and the industrial test results on the basis of low carbon plain steel indicate that the grain size of ferrite was near to 4 ～ 5 μm, elongation was more than 30% , impact property was good, the yield strength can reach 400 MPa.
关键词:plain carbon structure steel; ferrite; recrystallization; transformation; yield strength;
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