陈振业, 王会岭, 赵燕青, et al. Research and Development of New V-Ti-B Microalloyed Quenching and Tempering Q690E Steel Plate[J]. Special Steel, 2019, 40(1): 1-3.
陈振业, 王会岭, 赵燕青, et al. Research and Development of New V-Ti-B Microalloyed Quenching and Tempering Q690E Steel Plate[J]. Special Steel, 2019, 40(1): 1-3.DOI:
The Q690E steel plate for engineering machinery (/% :0. 10 ~0. 15 C
0. 20 - 0. 40 Si
W0. 015 P
W 0.005 S
0.30 ~ 0. 40 Cr
0. 20 ~ 0. 30 Mo
0. 035 ~ 0. 045 V
0. 01 ~ 0. 02 Ti
0. 001 ~ 0. 002 B) has been developed through low carbon and a “Mn-Cr-Mo-B-V-Ti” microalloyed components design
rolling and heat treatment technology selecting. The microstructure of Q690E steel plate guenched at 880 ~910 ℃ + tempered at 570 ~610 ℃ is tempered sorbite with yield strength 811 ~ 891 MPa
tensile strength is 852 -938 MPa and - 40 ℃ impact energy 132 ~ 167J. It ean meet the requirements of GB/T16270-2009 on mechanical properties for Q690E Steel. The result is that
while meeting the increasingly stringent requirements of users