焊管2024，Vol.47Issue(6)：39-43,5.DOI:10.19291/j.cnki.1001-3938.2024.06.007
卷取温度对150ksi超高强度焊管卷板组织和性能的影响
Effect of Coiling Temperature on Microstructure and Properties of Plate Bending of 150 ksi Ultra-high Strength Welded Pipe
杨森 1胡学文 1余宣洵 1毕宗岳 2孙照阳 1李鸿斌 3吴志文1
作者信息
- 1. 马鞍山钢铁股份有限公司,安徽 马鞍山 243000
- 2. 中油国家石油天然气管材工程技术研究中心有限公司,西安 710018||中国石油宝鸡石油钢管有限责任公司,陕西 宝鸡 721008
- 3. 中油国家石油天然气管材工程技术研究中心有限公司,西安 710018||中国石油宝鸡石油钢管有限责任公司,陕西 宝鸡 721008||陕西省高性能连续管重点实验室,陕西 宝鸡 721008
- 折叠
摘要
Abstract
In order to meet the demand of high strength welded pipe in deep and ultra-deep wells,150 ksi steel is developed by using low carbon microalloying composition design+TMCP process,and the influence of coiling temperature on the microstructure and properties of the plate bending is studied.The results show that with the increase of coiling temperature,the content of martensite in steel decreases,the strength of the material decreases,and the plasticity and toughness increase.Under the coiling temperature of 550℃,the yield strength of the platebending is 740 MPa,the tensile strength is 1 103 MPa,and the elongation is 17%,which meets the design requirements and has good strong plasticity.The Φ50.8 mm×4.0 mm welded pipemade of the plate bending has a yield strength of 1 078 MPa,a tensile strength of 1 141 MPa and a elongation of 21%,all of which meet the design requirements of 150 ksi steel grade welded pipe.关键词
150ksi/焊管/卷取温度/组织/性能Key words
150ksi/welded pipe/coiling temperature/microstructure/performance分类
矿业与冶金引用本文复制引用
杨森,胡学文,余宣洵,毕宗岳,孙照阳,李鸿斌,吴志文..卷取温度对150ksi超高强度焊管卷板组织和性能的影响[J].焊管,2024,47(6):39-43,5.
