无碳化物贝氏体无缝钢管的研究  

Study on Carbide-free Bainite Seamless Steel Pipe

作　　者：李强[1] 张冰[1] 

机构地区：[1]天津钢管集团股份有限公司,天津300301

出　　处：《天津冶金》2012年第1期11-14,44,共4页Tianjin Metallurgy

摘　　要：研究开发了一种适用于高强高韧无缝钢管的无碳化物贝氏体钢。通过工程试验与分析表明,该钢经轧制和低温回火后,其微观组织为无碳化物贝氏体和片状残余奥氏体,这种特殊的金相组织使其在具有较高的强度同时,仍然保持了良好的韧性,适合于制造高钢级甚至超高钢级的石油专用无缝管材。A type of carbide-free bainite steel suitable for high strength and high toughness seamless pipe was developed. As engineering test and analysis showed, when the above steel was rolled and tempered under low temperature, its microstructure consisted of carbide-free bainite and retained lamellar Austenite. This special metallographic structure enables the steel to possess high strength along with good toughness. Thus, this kind of steel is suitable for manufacturing high grade and even extra high grade oil casing.

关 键 词：贝氏体钢 钢管 试验 力学性能 研究 

分 类 号：TG142.1[一般工业技术—材料科学与工程]