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综述了国外在高钢级X80管道钢管方面的开发和应用状况。管材的研究目前正向更高屈服强度、更高韧性和易加工的方向发展,使用高钢级管材是提高管道设计压力的主要途径,同时,在同样的设计压力下使用高强度管材可减少钢材的消耗量。以德国Ruhrgas管道为例,介绍了国外高钢级管道钢管X80的实际质量水平,包括管道钢的合金化、控制轧制和控制冷却工艺,并就高钢级管道钢管的部分热点问题如富气输送、高钢级管道钢管的焊接和裂纹扩展止裂等进行了讨论和分析。
The development and application of foreign high-grade X80 pipe steel pipe are reviewed. Pipe research is currently to higher yield strength, higher toughness and easy processing direction, the use of high-grade steel pipe is to improve the pressure on the main pipeline design, while the same design pressure under the use of high-strength pipe can reduce the steel Consumption. Taking Ruhrgas pipeline in Germany as an example, the actual quality level of foreign high-grade pipeline steel pipe X80 is introduced, including the alloying of pipeline steel, control rolling and control cooling process. Some hot issues of high grade pipeline steel pipe, such as rich gas Transmission, high-grade steel pipe welding and crack propagation crack arrest and other were discussed and analyzed.