Microstructure and Mechanical Properties of 600 MPa-Grade Seismic Resistant Reinforced Steel Bars Fabricated by a Pilot Plant

2019 ◽  
Vol 29 (6) ◽  
pp. 349-355
Author(s):  
Tae-Woon Hong ◽  
Byoungchul Hwang
Keyword(s):  
Mechanical Properties ◽  
Pilot Plant ◽  
Microstructure And Mechanical Properties ◽  
Steel Bars ◽  
Seismic Resistant ◽  
Reinforced Steel

Effect of Heat Treatment on Microstructure and Mechanical Properties of 30MnSi Pre-Stressed Concrete Steel

2011 ◽  
Vol 250-253 ◽  
pp. 109-112
Author(s):  
Hong Bao Cui ◽  
Li Feng Zheng
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Tensile Strength ◽  
Heating Time ◽  
Tempered Martensite ◽  
Quenching Temperature ◽  
Microstructure And Mechanical Properties ◽  
Steel Bars ◽  
Constant Heating ◽  
The Relationship

In the present work, the effect of heat treatment parameters on microstructure and strength of the 30MnSi PC steel bars was investigated and analyzed systematically. The results show that the fine tempered martensite, thinning tempered troostite and tiny tempered sorbite can be obtained when quenching temperature reach 920°C and the temper temperature is 240°C, 430°C, 600°C, respectively. The relationship between heat treatment parameters and tensile strength was also obtained. Optimum strength can be obtained by quenching at 920-950 °C and tempering at 430 °C with constant heating time.

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