Fuxian ZHU
,
Xin LI
,
Yanchun LIU
,
Xianghua LIU
,
Guangfu SHE
,
Zhongping ZHANG
材料科学技术（英）
Effect of different cooling history on yield ratio of HP295 steel for welded gas cylinder was studied and the result implied that both fine microstructure and good mechanical properties can be attained by using two-stage cooling and controlling the coiling temperature. The yield ratio of HP295 steel sheet was reduced to less than 0.8 by two-stage cooling process. The pass percent of yield ratio was enhanced from less than 90% to 100%. The mechanical properties satisfied the criteria of GB6653-1994.
关键词:
HP295 steel sheet
,
屈强比
,
两段式冷却
,
卷取温度
