Microstructure and Mechanical Properties of X80 HTP Pipeline Steel Produced by Steckel Mill

被引：0
|
作者：
Jiang Haitao1
2.Nanjing Iron & Steel Co.
机构：
来源：
Engineering Sciences | 2008年 / 01期
关键词：
pipeline steel; HTP; Steckel mill; strength; toughness;
D O I：
暂无
中图分类号：
TG335 [轧制工艺];
学科分类号：
080201 ; 080503 ;
摘要：
The demand for energy becomes a bottleneck in development of China.Economically delivering natural gas and oil through pipeline is an urgent problem to be solved.In the present work,X80 pipeline steel with high toughness and thickness 21.0 mm was produced through HTP(High Temperature Processing)by Steckel mill rolling.And the microstructure and mechanical properties of the X80 pipeline steel,which produced by different processing parameters such as reheating temperature of slabs,resume temperature,finishing temperature,accelerated cooling exit temperature and cooling rate,were analyzed.The results show that finishing temperature of 800-820℃ and cooling rate above 20℃/s are necessary to obtain fine and uniform acicular ferrite with high solute niobium in X80 pipeline steel.
引用
收藏
页码：78 / 82
页数：5
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