Galvanized steel pipe is often used in various industries because of its good corrosion resistance and low cost. So, do you know how it is made? Next, Wanzhi Steel, a steel pipe manufacturer with 17 years of experience in steel production, will tell you the answer.

Hot-dip Galvanized Steel Pipe Manufacturing Process

Hot-dip galvanized steel pipe is made by reacting the molten metal with an iron substrate to produce an alloy layer, thus combining both the substrate and the coating. Hot-dip galvanizing is done by pickling the steel pipe first to remove iron oxide from the surface of the pipe. After pickling, it is cleaned by ammonium chloride or zinc chloride in an aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride and then sent to a hot-dip galvanizing bath. Hot-dip galvanizing has the advantages of uniform plating, strong adhesion, and long service life.

Cold Galvanized Steel Pipe Manufacturing Process

Cold galvanizing is also known as electro-galvanizing. This method of galvanizing is used to protect the metal from corrosion. Cold galvanizing utilizes a coating of zinc filler, which is applied to the protected surface and dried to form a zinc filler coating. The dried coating has a content of zinc (up to 95%). The cold galvanizing process is used for the corrosion protection of various steel products and structures.

Hot-dip galvanized steel pipes have been developed through the 1960s~70s of the 20th century, and the quality of products has been greatly improved. The galvanized pipe uses the sulfate electro-galvanized iron alloy process, in which the production line is perforated straight through from tank to tank without any carry-over or overflow of the solution. Each process in the production process consists of a circulation system. There are only 5 cleaning tanks in the production line, which are discharged regularly by recycling.

Nowadays, there are many homes where galvanized piping is still used. It is easy to install and it costs less than stainless steel pipe. Some galvanized square tubes are often used in the construction industry. Many architects consider these square tubes to be good building materials. The galvanized pipe is galvanized to make it more rust-proof and will protect the building from receiving corrosion. In addition, the zinc layer of galvanized pipe ensures that the pipe is thick and uniform on all sides. As a result, there is no chance of spillage and loss if it is used for transporting pipes that carry water or other liquid substances. Welded pipe includes heat, stress, and other forming processes that can affect what is inside the pipe, but galvanized pipe is always safe to use.

Contact Wanzhi Steel for Premium Steel Pipes

If you want to get good quality GI round steel pipe, take a look at the products offered by Wanzhi Steel. The pipes produced by Wanzhi Steel are made with great attention to quality issues. Every product will go through strict testing before it is shipped. Get in touch with Wanzhi Steel now to get specific information about galvanized pipes and other steel pipes.

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