Hebei ChongSheng Special Steel Pipe Co.,Ltd.
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Natural gas pipelines traverse the seismic fault zone or pass through areas of high seismic intensity in the region. Due to the frequent geological activities in these areas, longitudinal or axial alternating stress is generated on the pipelines. Under the long-term stress, the probability of accidental spiral welded steel pipe is much higher than that of straight seam welded steel pipe, therefore, straight seam welded steel pipe should be used in such a zone.
On the inner and outer coating demanding pipeline, should be used straight seam welded steel pipe. Spiral submerged arc welded steel pipe weld more than the height of the weld seam welded steel pipe is generally higher, the steel pipe for internal and external corrosion, the corrosion resistance of bare metal pipe with the degree of integration as straight seam welded steel pipe, corrosion effect is not Longitudinal welded steel pipe is good.
Natural gas pipeline with straight seam welded steel pipe
For important wear across the project, should use straight seam welded steel pipe. As the future maintenance and management are more difficult than the general line section, therefore, the use of straight seam welded steel pipe is particularly necessary.
For the pipeline of weak links, such as hot simmer elbow pipe, should be used straight seam welded steel pipe. Hot simmer elbow due to changes in direction, the internal and external force than its normal line straight pipe to large, due to various factors in the simmering process, the stress is not easy to eliminate, is the weak link in the long-distance pipeline , Using a good overall performance of straight seam welded steel can make up for these deficiencies.
Hebei ChongSheng Special Steel Pipe Co.,Ltd.
Add: YANSHAN COUNTY,HEBEI PROVINCE,CHINA