Anti-corrosion steel pipes refer to steel pipes that have been processed by anti-corrosion technology, which can effectively prevent or slow down the occurrence of corrosion during chemical or electrochemical reactions during transportation and use. root

According to my country's statistical data, the annual economic loss of domestic steel pipe corrosion is more than 280 billion yuan.

The current annual global steel pipe corrosion losses are as high as 500 billion US dollars. Corrosion-resistant steel pipes can effectively prevent or slow down corrosion and extend the service life of steel pipes, reducing the running cost of steel pipes.

Steel pipe classification:

Classification by manufacturing process

(1) The manufacturing process of seamless steel tubes can be divided into the basic categories of hot rolled (extruded), cold rolled (drawn) and hot expanded steel tubes.

(2) Welded pipe can be divided into straight welded steel pipe, spiral welded steel pipe, coiled butt welded steel pipe, and welded pipe thermal expansion steel pipe according to the manufacturing process.

Sort by shape

Steel tubes can be divided into round tubes, square tubes, rectangular tubes, octagonal, hexagonal, D-shaped, pentagonal and other special-shaped steel tubes, complex cross-section steel tubes, double concave steel tubes, five-petal plum-shaped steel tubes, conical steel tubes, corrugated Steel pipes, melon-shaped steel pipes, double convex steel pipes, etc.

Classification by use

Steel pipes can be divided into: steel pipes for pipelines, steel pipes for thermal equipment, steel pipes for machinery industry, petroleum, geological drilling steel pipes, container steel pipes, chemical industry steel pipes, special-purpose steel pipes, etc.