The pipeline steel is mainly used in transmission pipe of oil and natural gas.
管线钢主要用于石油和天然气的输送。
This paper systematically summarizes the basic design idea aiming at developing the pipeline steel with better comprehensive properties.
系统总结了管线钢合金设计的基本思想，力求为研制综合性能更佳的管线钢指明方向。
The pipeline steel was updated from X70 to X80 through TMCP technique, and its mechanical properties and fracture separation of rolled plate were studied.
利用TMCP技术实现了管线钢x 70级向X80级的升级，并研究了板材的力学性能及断口分离现象。
This article introduces the special requirements for material of the modern high pressure gas pipeline and development of the pipeline steel both home and abroad.
介绍了现代高压输气管道对材料的特殊要求以及国内外管线钢的进展情况。
The influences of quenching temperature on mechanical properties of the pipeline steel were investigated by means of microscopic analysis and mechanical property test.
采用力学性能测试、显微组织分析等方法研究了终冷温度对双相大变形管线钢的力学性能的影响。
Baosteel has mastered the modern pipeline steel production and quality control technology, the product's quality is stable and meet the pipeline steel plate demand requirements of customers.
宝钢已较好地掌握了现代管线钢的生产和质量控制技术，产品质量稳定，满足国内外用户对管线钢板卷的需求。
This paper analyzes the welding performances of the pipeline steel X80 including softening of heat affected zone, its matching with base material and the possibility of welding cracking. It also de…
文章分析了高强度X80钢管道的热影响区的软化、焊缝金属与母材的匹配及产生焊接裂纹的可能性，介绍了管道环缝焊接工艺，还列举了国外X80钢管道的焊接工程实例。
Pipeline steel adopting the spicular ferrite owns the better properties of forming.
采用针状铁素体的管线钢具有较好的成形性能。
The effects of tempering weld-pass treatment on toughness of HAZ of X80 pipeline steel were studied by the technique of welding thermal simulation and the method of microscope analysis.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
Similarly, when a pipeline transverses moist clay areas adjacent to dry loam, steel surfaces in the wet area become anodic to steel surfaces in the dry area.
与此相似，当管道通过与干亚粘土接壤的湿粘土区时，湿粘土区钢表面相对于干土区钢表面为阳极。
The special requirement for the welding of X80 pipeline steel was described also.
还简述了X80管线钢对焊接的特殊要求。
The Charpy impact properties of high strength pipeline steel with different microstructure were investigated.
研究了具有不同微观组织类型的高强度管线钢的夏比冲击韧性。
With joint protections of coating and cathode, the buried steel pipeline will still be corroded and penetraded on some pipe surfaces.
埋地钢质管道在防腐层、阴极防腐的共同保护下，钢管的某些区域仍会被腐蚀穿孔。
The delamination crack and its effect on the fracture of pipeline steel were investigated by drop-weight tear test(DWTT)at different temperature and micrograph analysis.
通过对管线钢不同温度的落锤撕裂试验和微观断口分析，研究了DWTT试样断口的分层裂纹及其对断裂的影响。
It is reported that X120 is by far the highest level of pipeline steel, at present, the world only the Japanese Nippon steel, Sumitomo and some European companies have production performance.
据悉，X120是迄今为止等级最高的管线钢，目前，国际上只有日本新日铁、住友和欧洲一些公司有过生产实绩。
The technology is studied on steel pipeline surface by hot spraying with oxygen natural gas.
研究了在钢质管道表面采用氧气—石油天然气火焰熔覆玻璃涂层的工艺。
The deformability of under-matched X80 grade pipeline steel welding joint was studied through Finite Element Method.
采用有限元法对低匹配条件下x 80钢级管线钢焊接接头的变形能力进行了研究。
The influence of per-tension deformation to the tensional function of X60 pipeline steel is investigated by tension experiment.
通过拉伸试验，分析了预拉伸变形对X60管线钢拉伸性能的影响。
Welding property is an important index to weigh the property of pipeline steel.
焊接性能是衡量管线钢性能的一项重要指标。
A study was made of the welding procedure for X70-L245 butt joint of pipeline steel.
针对不同强度级别的管线钢x 70和L245对接的焊接工艺进行了研究。
Thermal simulating technology was adopted to study grain size and the precipitates distribution of CGHAZ for X80 pipeline steel with different welding condition.
采用热模拟技术研究了X80管线钢在不同焊接热循环条件下晶粒及第二相粒子的变化。
The rolling technology and force-power parameters of hot rolling of pipeline steel grades X60H, X65H are discussed in the paper.
对热轧管线用钢板X60H、X65H试轧过程中的轧制工艺和力能参数进行了较全面的分析研究。
The Charpy impact properties of high strength pipeline steel with different microstructures have been studied through a series of the instrumented impact tests.
采用示波冲击试验方法研究了具有不同微观组织高强度管线钢的夏比冲击性能。
A new method for showing the prior austenite crystal boundary corrosion, of pipeline steel has been also supposed.
同时探索出一种新的管线钢原奥氏体晶界腐蚀方法。
On the base of above appoints, the slow strain rate test was used to study the effect of prestraining on the SCC susceptibility of X70 pipeline steel in simulate soil media.
基于以上的观点，本文采用慢应变速率实验方法探讨了预形变对X70管线钢在模拟土壤介质中应力腐蚀敏感性的影响。
The X80 pipeline steel with higher strength has been developed since Baosteel finished developing its X70 pipeline steel used in the West-East natural gas transmission project.
宝钢在完成“西气东输”工程用X70管线钢后，进行了更高强度级别X80管线钢的研制。
It analyses the few attention issues applied in grade X80 pipeline steel.
分析了X80级管线钢应用中应关注的几个问题。
Through the analysis of elements affecting the rough crystal zone in pipeline steel weld, it raises the flexing direction of rough crystal zone of pipeline steel.
通过对管线钢焊接粗晶区韧性影响因素的分析，提出了管线钢粗晶区的韧化方向。
The electrochemical characteristics of pitting corrosion of X70 pipeline steel in phosphate buffer solution were studied in this paper.
研究了X70钢在磷酸盐缓冲溶液中的亚稳态与稳态孔蚀的电化学行为特征。
The electrochemical characteristics of pitting corrosion of X70 pipeline steel in phosphate buffer solution were studied in this paper.
研究了X70钢在磷酸盐缓冲溶液中的亚稳态与稳态孔蚀的电化学行为特征。
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