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Methods for preventing or slowing down the corrosion of petrochemical steel pipelines
1. Adapt measures to local conditions: Reasonably select pipeline building materials, and select different types of materials according to different conveying media and environmental conditions. 2. Steel pipe with external DC power supply: the metal of the pipeline that was or...Read more -
Straight seam welded pipe anti-rust maintenance and inspection methods
The production process of straight seam welded pipe is simple, the production efficiency is high, the cost is low, and the development is rapid. The strength of the spiral welded pipe is generally higher than that of the straight seam welded pipe, and the welded pipe with a la...Read more -
Processing technology and inspection steps of straight seam steel pipes
The welding current in the swing welding of the straight seam steel pipe is slightly larger than that of the traditional welding method; secondly, the elongation of the tungsten electrode in the swing welding of the straight seam steel pipe is determined according to the wall ...Read more -
Anti-corrosion process of anti-corrosion steel pipe
In recent years, the demand for steel pipe insulation in various industries in China has increased. The production technology of domestic anti-corrosion steel pipe factories has been relatively mature, and various anti-corrosion products can be produced. Among them, 3PE anti-c...Read more -
How to judge the quality of spiral steel pipe
1. From the surface of the spiral steel pipe to see whether the production process of the spiral steel pipe is exquisite. Generally, research and analysis of spiral steel are required, and the section of fake and inferior spiral steel pipes is oval. The reason is that the manu...Read more -
How to prevent decarburization of spiral welded pipe
There is a certain relationship between the service life of the spiral welded pipe and the surface decarburization of the spiral welded pipe. If the surface is decarburized, the strength and wear resistance of the spiral welded pipe will be reduced, which directly affects the ...Read more -
Stainless steel pipe surface finish grade
Original surface: NO.1 surface subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industrial equipment, etc., the thickness is thicker from 2.0MM to 8.0MM. The stainless steel pipe processi...Read more -
Application of stainless steel pipes in fire-fighting piping systems
The fire-fighting pipeline includes two systems: the fire hydrant system and the water sprinkler system. Stainless steel fire-fighting piping system is a kind of fixed fire-fighting facility widely used in China. Nowadays, 304 stainless steel pipes are used in fire water suppl...Read more -
Why are large-diameter steel pipes mostly welded with steel
1. The use of large-diameter stainless steel can be divided into oil well pipes (casing pipes, oil pipes, and drill pipes, etc.), pipeline pipes, boiler pipes, mechanical structure pipes, hydraulic prop pipes, gas cylinder pipes, geological pipes, chemical pipes (high-pressure...Read more