X80 Seamless Pipeline

X80 Seamless Pipeline

In recent years,API 5L X80 PSL2 grade seamless pipeline steel with large diameter and high grade steel pipe for transporting natural gas are carried out internationally. The main results are as follows: 1. Natural gas pipeline development. The use of high-pressure transmission and selection of...

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In recent years,API 5L X80 PSL2 grade seamless pipeline steel with large diameter and high grade steel pipe for transporting natural gas are carried out internationally. The main results are as follows:

1. Natural gas pipeline development.
The use of high-pressure transmission and selection of high-grade steel pipe, pipe construction costs can be substantial savings, which is the main trend of natural gas pipeline development. The use of high-pressure transmission can reduce the pipe diameter, through the development and application of high-grade pipe can reduce the wall thickness of steel pipe, thereby reducing the weight of steel pipe, and reduce the construction site welding time, thereby greatly reducing the weight of steel and construction costs. According to Canada's pipeline construction statistics, pipeline materials and project design, the use of X80 steel grade than the X70 steel total of two can save 17% to 29.5%.

2. In the world, X80 steel grade seamless pipeline steel has been successfully applied. X80 steel grade from the mid-1980s began to research studies and tests were used in batches in the early 1990s and to date, X80 steel pipes laid around the world have been used for about 2000km.

3. In the world's major pipeline steel pipe product standards have X80 steel grade, and a clear quality and technical indicators.

4. International X80-class steel research and application of success experience shows that, X80 and X70 steel grade in the design, production and construction, there is no significant difference, the pipeline has been built to operate normally.

5. Selection of X80 high-grade pipe can save a lot of pipe construction cost is an important trend in the development of international natural gas pipeline. X80 steel grade is internationally mature and standard pipeline steel level, the international community in the pipeline design, production, construction and operation has a mature experience.

6.After several years of domestic research and development, the first trial of the X80 grade seamless pipeline steel pipe quality indicators to meet the X80 pipeline engineering application standards require that the physical quality of steel pipe be at the same level as that of similar foreign products.

7.International X80 pipe for transporting ordinary natural gas road fault control has been solved. Based on the analysis of cracking toughness and crack arrest toughness of X80 steel grade pipe and the analysis of pipeline running safety, it is safe and feasible to replace X70 grade pipe with thin wall thickness X80.




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