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Anti-corrosion Maintenance Methods of Seamless Steel Pipes

Oct 14, 2021
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Anti-corrosion Maintenance Methods of Seamless Steel Pipes
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The seamless steel pipe is a kind of conduit, which is resistant to air and steam and other weak acerbity materials. It has good corrosion resistance. However, if the seamless steel pipe is placed in a strong alkali or acid environment, there will be a corrosion phenomenon. Therefore, we need to take some anti-corrosion maintenance measures (the solutions to the problem). Next, we will introduce the anti-corrosion maintenance methods of seamless steel pipes:
 
In the process of cleaning the seamless steel pipe, do you will use some materials containing weak acid (acerbity) for cleaning? I do not know if you have noticed the content of acid substances. It not only causes secondary pollution to the environment, but also has a certain impact on the seamless steel pipe. It should be used after the clean water to cleanse. It is forbidden to use strong alkali substances to wash some oil stains. This will lead to the phenomenon that the finish and surface of seamless steel pipes lack luster. It should also be positioned in a dry environment to reduce the chance of decay.
 
Seamless steel pipes are widely used. The seamless steel pipe is a kind of pipeline with hollow section for conveying fluid, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, the steel pipe has the same flexural and torsional strength and lighter weight. Therefore, it is a kind of steel with an economic section. General seamless steel pipes are rolled by ordinary carbon structure steel, low alloy structure steel or alloy structure steel. With the largest output, they are mainly used as pipelines or structural parts for conveying fluids. 
 
2. Three different types of supply according to the usage:
A. Supply according to chemistry composition and machinery performance.
b. Supply according to mechanical properties.
c. Supply according to the hydraulic test.
According to the steel pipes supplied by class A and class B, it should also be subjected to hydrostatic test if it is used to withstand liquid pressure. GB5310 is mainly used to manufacture high-pressure steam boiler pipes, other high-quality carbon structural steel, alloy structural steel and heat resistant stainless steel seamless steel pipes. 
 
3. There are special applications of seamless pipes like boiler pipes, chemical power, geological seamless steel pipes and petroleum seamless pipes and so on.
 
The seamless steel pipe is widely used in the manufacture of structural parts and mechanical parts, such as petroleum drill pipes, the automobile drive shaft (drive shaft composition: a shaft tube, a telescopic sleeve and a universal joint), bicycle frames and steel scaffolding in architecture construction and other manufacturing ring parts of steel pipes. It can improve the utilization of materials. 
 
Steel pipes are widely used to simplify manufacturing processes and save materials and processing hours. In order to use the pipes under high pressure, the heating surface tube is often designed to be very thick. In order to reduce thermal resistance, save steel, ensure the safety of higher or high-pressure boiler steel and reduce the amount of steel, 16MnG is widely used. At the same time, there is also special steel with rare earth, magnesium and other metals and non-metallic materials. This will improve the performance of boiler steel and reduce the consumption of steel. Moreover, it can reduce thermal resistance.
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