超高强度系列管线钢厚板的研制  

Development of High Strength Pipeline Steel

作　　者：高珊[1] 郑磊[1] 章传国[1] 

机构地区：[1]宝山钢铁股份有限公司,上海201900

出　　处：《世界钢铁》2009年第5期1-6,共6页World Iron & Steel

摘　　要：介绍了宝钢超高强度X90、X100、X120系列管线钢的研制开发。以低碳微合金化配合适当的控轧控冷TMCP工艺,试制厚度为16mm的超高强度X90、X100、X120系列管线钢厚板。用其制造914mm×16mm直缝焊管,具有高的强度和优良的低温冲击韧性。管体母材横向具有高的屈服强度和抗拉强度,最高强度级别的X120管线钢管在-40℃下的夏比冲击功大于220J,FATT50(CVN)为-73℃,DWTT断口FATT85(CVN)为-15℃;钢管焊缝和焊接热影响区在-20℃下的夏比冲击功分别大于150J和80J,FATT50(CVN)均为-55℃。用宝钢生产的超高强度X90、X100、X120系列管线钢厚板试制的各等级的尺寸为914mm×16mm的直缝焊管各项性能分别满足API5L(44版)、ISO3183:2006(E)规范对X90、X100、X120管线钢管的要求。This paper introduces Baosteel＇ s research and development of high strength X90, X100 and X120 pipeline steel with the thickness of 16 mm by low carbon microalloying and TMCP. The X90, X100 and X120 pipes with the size of φ14mm×16mm have high strength and excellent toughness at low temperature. The pipeline steel has high transverse yield strength and tensile strength. As for X120 pipeline steel, CVN is more than 220 J at -40℃, FATTS0（CVN） is -73℃, FATT85 （CVN） of DWTT is - 15℃ ; CVN of welding and HAZ at -20℃ are respectively more than 150 J and 80 J, and FATT50（CVN） are all -55^（2. The properties of high strength X90, X100 and X120 pipes produced by TMCP with the size of φ14mm×16mm reach the standard of API 5L（44） and ISO 3183 ： 2006 （E）.

关 键 词：X90 X100 X120 管线钢 TMCP 低温韧性 

分 类 号：TG457.11[金属学及工艺—焊接] TE973.04[石油与天然气工程—石油机械设备]