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| HRB400E grade steel rebar containing Ni/Cr |
| DAI Xiao-tian1，ZHOU He-min1，LI Wei2，QI Yuan-hong1 |
1.State Key Laboratory of Advanced Iron and Steel Processes and Products，Central Iron and Steel Research Institute， Beijing 100081，China
2.Recearch Institute of Funitional Materials，Central Iron and Steel Research Institute，Beijing 100081，China |
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Abstract There are residual Ni and Cr elements in hot metal and steel， as lateritic nickel ore is used as one of blast furnace raw material. A new kind of HRB400E grade high-strength anti-seismic reinforcement bar is developed by making full use of residual Ni/Cr elements in steel. Based on 20MnSi steel， Ni/Cr effects on rebar’s mechanical properties were studied and Ni/Cr content in rebar is optimized. Both Ni and Cr content are 0.2% in new type HRB400E grade rebar. Without adding other micro-alloying elements， such as Nb or V， rebar’s properties could meet the requirements of China national standard.
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Received: 01 June 2015
Published: 27 January 2016
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2016, Vol. 51 
