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Chengjia Shang, Xuemin Wang, Xinlai He, Shanwu Yang, and Yi Yuan, A Special TMCP Used to Develop a 800MPa Grade HSLA Steel, J. Univ. Sci. Technol. Beijing , 8(2001), No. 3, pp.224-228.
Chengjia Shang, Xuemin Wang, Xinlai He, Shanwu Yang, and Yi Yuan, A Special TMCP Used to Develop a 800MPa Grade HSLA Steel, J. Univ. Sci. Technol. Beijing , 8(2001), No. 3, pp.224-228.
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A Special TMCP Used to Develop a 800MPa Grade HSLA Steel

摘要: The effect of relaxation after finished rolling on structures and properties of four microalloyed steel with different content of Nb and Ti was investigated. By alloy designing and control rolling + relaxation-precipitation-control phase trail storm ati on (RPC) process, a new 800 MPa grade HSLA plate steel could be obtained, the microstructure is composite ultra-fine lath bainite/martensite. The tempering process and mechanical properties of this kind of HSLA steel were investigated. The yield strength can achieve 800 MPa, and the ductility and impact toughness is satisfied.

 

A Special TMCP Used to Develop a 800MPa Grade HSLA Steel

Abstract: The effect of relaxation after finished rolling on structures and properties of four microalloyed steel with different content of Nb and Ti was investigated. By alloy designing and control rolling + relaxation-precipitation-control phase trail storm ati on (RPC) process, a new 800 MPa grade HSLA plate steel could be obtained, the microstructure is composite ultra-fine lath bainite/martensite. The tempering process and mechanical properties of this kind of HSLA steel were investigated. The yield strength can achieve 800 MPa, and the ductility and impact toughness is satisfied.

 

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