赵志平, 康永林, 丛津功, et al. Research and Production on Medium and Heavy Plate of HQ590DB Ultra-Low Carbon Bainitic Steel[J]. Special Steel, 2005, 26(1): 52-54.
赵志平, 康永林, 丛津功, et al. Research and Production on Medium and Heavy Plate of HQ590DB Ultra-Low Carbon Bainitic Steel[J]. Special Steel, 2005, 26(1): 52-54.DOI:
The 30~40 mm medium plate of HQ590DB ultra-low carbon bainitic steel - 0.05C- 1.5Mn-0.04Nb- 0.02Ti-≤0.0002B has been pilot-produced by 180 t converter- RH - LF (Ca treated)- concasting slab:230(300)mmx1650mm×6000 mm-4300 mill controlled rolling and cooling process. [H
]
in concasting slab was 1.7×10-⁶
[O
]
21 ×10~⁶ and[N
]
29×10-6.With controlled finishing rolling temperature between 800 and 850 ℃ and cooling temperature between 590 and 630 ℃
the structure of ferrite + lath bainite was obtained