Maintenance of seamless steel pipe corrosion

Seamless steel pipe is a type of pipeline that is resistant to weak acid substances such as air and steam, and has good corrosion resistance. However, if the seamless steel pipe can be placed in a strong alkaline or acidic environment, it will be corroded. Therefore, we need to take other traditional anti-corrosion maintenance and management measures for it.

8710 corrosion-resistant spiral steel pipes are welded steel pipes with a hot-dip or galvanized coating on the surface. Galvanizing can increase the corrosion resistance of steel pipes and extend their service life. Galvanized pipes have a wide range of uses. In addition to being used as pipeline pipes for water, gas, oil and other general low pressure fluids, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially in offshore oil fields, as well as pipes for oil heaters, condenser coolers, coal distillate washing oil exchangers of chemical coking equipment, as well as pipes for trestle piles, and support frames of mine tunnels. The 3PE anti-corrosion pipeline steel pipe has a hollow section, which is much longer than the diameter or circumference of the steel. Divided into circular, square, rectangular, and irregular steel pipes according to their cross-sectional shapes; According to material, it is divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes, and composite steel pipes; Classified by purpose, it is used for transportation pipelines, engineering structures, thermal equipment, petrochemical industry, mechanical manufacturing, geological drilling, high-pressure equipment steel pipes, etc. According to production processes, it is divided into seamless steel pipes and welded steel pipes. Seamless steel pipes are further divided into hot rolled and cold rolled (drawn) types, and welded steel pipes are further divided into straight seam welded steel pipes and spiral seam welded steel pipes. 8710 spiral steel pipes are used to manufacture building structural grids, pillars, and mechanical supports, which can reduce weight, save metal by 20-40%, and achieve factory mechanized construction.

Next, in order to improve everyone's understanding, we will mainly introduce and analyze the maintenance technical measures for anti-corrosion of seamless steel pipes:

When cleaning seamless steel pipes, do you use some weak acidic substances for cleaning? I wonder if you have noticed the content of acidic substances, which not only causes secondary pollution to the environment, but also has a certain impact on the seamless steel pipes. After cleaning, you should use clean water to wipe, do not use strong alkaline substances to clean some oil stains, which can cause seamless steel pipes to be smooth and have a dull surface Place in a dry environment to reduce the risk of corrosion.

Seamless steel pipes are widely used. Seamless steel pipes for general use are rolled from ordinary carbon structural steel, low alloy structural steel, or alloy structural steel, with the most production problems. They can mainly be used as pipelines or structural analysis parts for conveying fluids in enterprises.

According to different uses, there are three types of product supply:

a. Stable supply based on chemical composition and mechanical equipment performance;

b. Improve supply based on mechanical technical performance;

c. Supply of materials through testing according to water pressure. Steel pipes supplied according to categories a and b, if used to withstand liquid environmental pressure, should also undergo continuous controlled hydraulic testing. There are various types of seamless pipes specialized in research purposes, including seamless pipes for boilers, seamless pipes for chemical power development, seamless steel pipes for geology, and seamless pipes for petroleum.

Seamless steel pipes have a hollow structural cross-section and can be widely used as pipelines for transporting fluids in enterprises, such as pipelines for transporting Chinese petroleum, natural gas, gas, water, and certain urban solid materials. Compared with solid steel products such as round steel in the market, steel pipes have a lighter weight when their bending and torsional strength are the same, making them a type of socio-economic cross-sectional steel.