珠钢150t EAF-LF-CSP工艺X60管线钢的开发  

Development of X60 Pipeline Steel by 150t EAF-LF-CSP Process at Zhujiang Steel

作　　者：毛新平[1] 庄汉洲 李春艳 刘清友[3] 李烈军 陈学文 高吉祥 陈麒琳 

机构地区：[1]广州珠江钢铁有限责任公司,广州510730 [2]广钢集团技术中心CSP应用技术研究所,广州510730 [3]钢铁研究总院结构材料研究所,北京100081

出　　处：《特殊钢》2006年第4期45-46,共2页Special Steel

摘　　要：珠钢用150 t EAF-LF-50-60 mm板坯连铸机-热连轧工艺和Nb-Ti复合微合金化技术开发了9．50 mm带X60管线钢(％:0．03～0．07C,1．2～1．6Mn,Nb+V+Ti≤0．15)。检验结果表明,钢带组织为铁素体+少量珠光体,晶粒度11．5～12．0级,带状组织≤1．5级,屈服强度440-505 MPa,0℃夏比冲击功为140～270 J,其综合性能满足API-5L技术标准和工程使用要求。The 9.50 mm strip of X60 pipeline steel （0.03 - 0.07C, 1.2 - 1.6Mn, Nb ＋ V ＋ Ti ≤ 0.15） has been developed by 150 t EAF - LF - 50 - 60 mm east slab-hot continuous rolling process and Nb-Ti compound-alloying technology at Zhujiang Steel. Examination results showed that the structure of strip was ferrite ＋ minor pearlite with grain size rating 11.5 - 12.0 and banded structure rating ≤ 1.5, the yield strength of was 440 - 505 MPa, eharpy impact energy at 0 ℃ was 140 - 270 J. Its eomprehensive properties meet the requirement of API-5L teehnieal standard and engineering application.

关 键 词：150 t EAF-CSP工艺 X60管线钢 Nb-Ti复合微合金化 

分 类 号：TF762[冶金工程—钢铁冶金]