S890大直径厚壁高强韧性液压油缸用无缝钢管的开发  

Development of Large-sized and Heavy-walled S890 High Strength/Toughness Seamless Steel Tube for Hydraulic Cylinder Service

作　　者：王世明 周勇[1] 黄佑启[1] WANG Shiming;ZHOU Yong;HUANG Youqi(Hengyang Valin Steel Tube Co.,Ltd.,Hengyang 421001,China)

机构地区：[1]衡阳华菱钢管有限公司,湖南衡阳421001

出　　处：《钢管》2020年第2期24-28,共5页Steel Pipe

摘　　要：介绍S890大直径厚壁高强韧性液压油缸用无缝钢管的开发过程,并检测成品管的性能,分析其显微组织。研究结果表明:采用“电炉炼钢+LF+VD+周期轧管机组轧制+调质热处理”工艺开发出的S890大直径厚壁高强韧性液压油缸管,其各项性能指标均满足用户的设计要求,低温冲击韧性好,焊接性能优良,可以批量生产。Elaborated here in the article is the development process of the large-sized and heavy-walled S890 high strength/toughness seamless steel tube for hydraulic cylinder service.The finished tube's properties are tested,and its microstructure is analyzed.As a result,it is concluded that the said tube as developed with the “EF steel-melting+LF+VD+pilger mill rolling+quenching and tempering”process has all of its performance indexes up to the customer design requirements,including good low-temperature impact toughness and excellent weldability,being worth massive production.

关 键 词：无缝钢管 大直径 厚壁 S890 液压油缸 高强韧性 

分 类 号：TG335.71[金属学及工艺—金属压力加工]