Hot dip galvanized steel pipe is widely used in construction, machinery, coal, chemical, railway vehicles, automotive industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.
Galvanized steel pipe with hot-dip or electro-galvanized steel. Galvanizing increases the corrosion resistance of steel pipes and extends their service life. The use of galvanized pipe is very wide. Except for the line pipe of general low pressure fluid such as water, coal gas, oil, etc., it is also used as oil well pipe and oil pipe of petroleum industry, especially offshore oil field, and oil heater and condensation of chemical coking equipment. Cooler, coal distillate oil exchange pipe, and trestle pipe piles, mine pit support frame pipe.
The galvanized pipe is a layer of zinc on the original black pipe, so as to prevent direct contact between the surface of the steel pipe and the air and prevent corrosion and rust. It is mainly used for the transportation of water supply pipes or gas. The surface of the galvanized pipe is relatively smooth and durable. The zinc layer has strong adsorption and is not easy to fall off. The electroplated zinc is used, which is cheap and durable. However, if the surface zinc layer is not evenly distributed, it will easily fall off and fade, making the surface of the steel pipe in contact with the outside. Once the corrosion is rusted, its service life will be shortened.
Galvanized pipe needs surface treatment before construction. Although the surface is blocked from the external environment, dust will be generated during transportation. Occasionally rusted parts can be ground off with sandpaper. When galvanized pipe is surface treated, Try not to scratch the galvanized pipe, not only will affect the appearance of the effect, but also make the zinc layer off, easy to rust. The thickness of the galvanized pipe can also be measured by price.