Structure and Mechanical Properties of Linepipe Steel X80

张小立; 冯耀荣; 赵文轸; 霍春勇; 庄传晶; 吉玲康; 孟强

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Structure and Mechanical Properties of Linepipe Steel X80

更新时间：2026-01-21

- Structure and Mechanical Properties of Linepipe Steel X80
- Special Steel Vol. 27, Issue 3, Pages: 11-13(2006)
- 作者机构：
  
  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：
- 基金信息：
- DOI：
  CLC：
- Received：01 December 2005，
  
  Online First：09 March 2023，
  
  Published：09 March 2006
- 稿件说明：
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张小立, 冯耀荣, 赵文轸, et al. Structure and Mechanical Properties of Linepipe Steel X80[J]. Special Steel, 2006, 27(3): 11-13.
DOI：

张小立, 冯耀荣, 赵文轸, et al. Structure and Mechanical Properties of Linepipe Steel X80[J]. Special Steel, 2006, 27(3): 11-13. DOI：

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。

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.

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