01-08-2023 дата публикации
Номер: CN116516254A
Автор:
LIU KUN,
ZHANG XU,
JIANG SHAN,
TIAN ZHIHONG,
CHEN BIN,
PANG LUFENG,
HUANG TIANHUA,
HUI YAJUN,
HARAZONO,
XU YONGXIAN,
WANG XUEQIANG,
HAN YUN,
NIU TAO,
XU HAIWEI,
YU MENG,
MIAO CHENGLIANG,
WANG LUN,
LI FEI,
AN RUIDONG,
LI RUI,
LI YUE,
BAI FENGXIA,
ZHU GUOSEN,
LI YONGLIN
Принадлежит:
The invention relates to the field of weathering resistant steel materials, in particular to hot-rolled high-strength high-weathering resistant steel and a preparation method and application thereof. The hot-rolled steel with high strength and high weathering resistance comprises the following chemical components in percentage by mass: 0.043% to 0.048% of C, 0.51% to 0.59% of Si, 0.61% to 0.68% of Mn, 0.101% to 0.109% of P, 0.0031% to 0.0038% of S, 0.071% to 0.079% of Al, 0.062% to 0.067% of Ti, 0.251% to 0.259% of Cu, 0.84% to 0.89% of Cr, 0.0031% to 0.0034% of N and the balance of Fe and inevitable impurities. The microalloying design with low C content, low Mn content and high Ti content is adopted, the overall strength of the high-weathering-resistant steel is improved, the deformation resistance in the rolling process is reduced, the rolling stability is good, composite weathering resistance design is carried out aiming at Si, P, Cu and Cr elements, the contribution of Si, P and other ...
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