Structure and Mechanical Properties of Linepipe Steel X80

Special Steel ›› 2006, Vol. 27 ›› Issue (3): 11-13.

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Structure and Mechanical Properties of Linepipe Steel X80

Zhang Xiaoli^1,2,Feng Yaorong¹,Zhao Wenzhen³,Huo Chunyong¹, Zhuang Chuanjing¹,Ji Lingkang¹， Meng Qiang⁴

1 Tubular Goods Research Institute,CNPC,Xi'an 710065;
2 Department of Materials and Chemical Engineering,Zhongyuan University of Technology,Zhengzhou 450007;
3 Materials and Science Engineering,Xi'an Jiaotong University,Xi'an 710049;
4 Xi'an Shiyou University,Xi'an 710065

Received:2005-12-01 Online:2006-05-08 Published:2023-03-09

X80级管线钢的组织和力学性能

张小立^1,2，冯耀荣¹，赵文轸³，霍春勇¹，庄传晶¹，吉玲康¹，孟强⁴

1中国石油天然气集团公司管材研究所，西安710065;
2中原工学院材料与化学工程系，郑州450007;
3西安交通大学材料科学与工程学院，西安710049;
4西安石油大学，西安710065

作者简介:张小立(1969-),女，博士后，2004年西安交通大学毕业，从事粉末冶金难熔金属成型工艺、性能以及管线钢组织和性能的研究。

Abstract

Abstract: The structure,strength and impact toughness of linepipe steel X80-0.04C,1.87Mn,0.27Mo,0.06Nb, 0.006V,0.017Ti were tested and compared with linepipe steel X70.The exarination results showed that as structure of the linepipe steel X80 was acicular ferrite + fine dispersed bainite,the steel had better stength and toughness,its tensile strength was up to 750 MPa and ratio of tensile strength to yield strength was nearly up to 0.85,all was high than that of pipeline steel X70.

Key words: Linepipe , Steel , X80,Structure,Mechanical , Properties

摘要： 对成分(%)为:0.04C,1.87Mn,0.27Mo,0.06Nb,0.006V,0.017Ti的X80级管线钢进行了组织和冲击韧性、强度试验,并与X70级管线钢进行对比。试验结果表明,当X80钢的组织为针状铁素体和细小弥散的贝氏体时,该钢有较好的强韧性,抗拉强度达750 MPa,屈强比接近0.85,高于X70级管线钢。

关键词: X80 级管线钢, 组织 , 力学性能

Zhang Xiaoli, Feng Yaorong, Zhao Wenzhen, Huo Chunyong, Zhuang Chuanjing, Ji Lingkang, Meng Qiang. Structure and Mechanical Properties of Linepipe Steel X80[J]. Special Steel, 2006, 27(3): 11-13.

张小立, 冯耀荣, 赵文轸, 霍春勇, 庄传晶, 吉玲康, 孟强. X80级管线钢的组织和力学性能[J]. 特殊钢, 2006, 27(3): 11-13.

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Structure and Mechanical Properties of Linepipe Steel X80

X80级管线钢的组织和力学性能

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