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What are the heat treatments of stainless steel welded pipe
During the production process of stainless steel welded pipe, intermediate heat treatment, and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is canceled. The use of this heat treatment p...Read more -
About the characteristics and uses of straight seam steel pipe
Characteristics of straight seam steel pipes: Straight seam steel pipes generally refer to the use of special processes to carry out anti-corrosion treatment on ordinary steel pipes, so that the steel pipes have excellent anti-corrosion capabilities, and are generally used for...Read more -
How to deal with the sealing method of flange leakage
First. Leakage location and condition The connecting flange bolts on both sides of the DN150 valve body leak. Since the flange connection gap is extremely small, it is impossible to inject sealant through the gap to eliminate the leakage. The leakage medium is steam, the tempe...Read more -
Introduction to the quality process and characteristic uses of large-diameter steel flanges
Large-diameter steel flange is a kind of steel flange, which is widely used and promoted in the machinery industry and has been well received and favored by users. Large-diameter steel flanges are widely used, and the range of use is determined according to different character...Read more -
Surface defects of seamless steel pipes and their causes
The causes of surface defects of seamless steel pipes are intricate. There are hundreds of influencing factors listed, and sometimes there are dozens of factors for the same defect, and the occurrence of defects has a great relationship with the steel type. This is why the pro...Read more -
Application and material of stainless steel seamless steel pipe
Stainless steel seamless steel pipe details – stainless steel pipe material Material: 201(1Cr17Mn6Ni5N), 202(1Cr18Mn8Ni5N), 301(1Cr17Ni7), 302(1Cr18Ni), 304(0Cr18Ni9), SS304, TP304 304L(00Cr19Ni10), SS304L, TP304L 321(1Cr18Ni9Ti), SS3 21. TP321, 316 (0Cr17Ni12Mo2) , SS31...Read more -
Analysis of Process Elements Affecting High-Frequency Longitudinal Welded Pipe
The main process parameters of high-frequency straight seam welded pipe include welding heat input, welding pressure, welding speed, opening angle, position and size of the induction coil, position of impedance, etc. These parameters have a greater impact on improving the qual...Read more -
The installation process of stainless steel pipe
The installation method of stainless steel pipes is the same as that of ordinary carbon steel, and some processes have the following process requirements. 1. Stainless steel pipes should not be in direct contact with other metals for hoisting and should be padded with non-meta...Read more -
Eddy’s current non-destructive testing method for a weld seam of spiral steel pipe
Pipeline transportation, as an efficient means of special transportation, has played an increasingly important role in oil and gas transportation and other fields. At present, domestic large-diameter transportation pipelines are mainly constructed of spiral welded steel pipes....Read more