Hot-dip galvanized steel pipes are widely used in construction, machinery, coal mines, chemical industry, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, exploration machinery and other manufacturing industries.

Galvanized steel pipe is a welded steel pipe with a hot-dip or electroplated zinc layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and extend their service life. Galvanized pipes are widely used. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, and oil, they are also used as oil well pipes and oil pipelines in the petroleum industry, especially offshore oil fields, and as oil heaters and condensators in chemical coking equipment. Pipes for coolers, coal distillate wash oil exchangers, pipes for trestle pipe piles, and support frames for mine tunnels, etc.

Characteristics of hot-dip galvanized pipe

Galvanized pipes are divided into hot-dip galvanized pipes and cold-dip galvanized pipes. Compared with cold-dip galvanized pipes, the galvanized layer of hot-dip galvanized pipes is thicker, which makes the anti-corrosion performance of hot-dip galvanized pipes better. Hot-dip galvanized pipes react by melting zinc and the matrix of the steel pipe, so that the iron part of the steel pipe and the zinc coating are combined into one, so that the hot-dip galvanized pipe gets a solid protective layer to protect the steel pipe matrix. role. The surface coating of hot-dip galvanized steel pipes is very uniform and will not turn red even if it is continuously dipped in copper sulfate solution for 3 to 5 times. The process of making hot-dip galvanized pipes is also very complicated. It usually requires cutting, degreasing, pickling and rinsing, then cleaning, and finally hot-dip galvanizing and inspection. Through this series of complicated and repetitive processes , the hot-dip galvanized steel pipe is manufactured. After such “hard work”, hot-dip galvanized steel pipes will have extremely strong anti-corrosion properties.

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