How to distinguish galvanized steel pipe

It is true that galvanized steel pipes are actually ordinary welded steel pipes that have been galvanized. However, due to the different production processes, galvanized steel pipes are also differentiated by type.

For example, the order of galvanizing and processing is different, giving rise to two different products, and the price of galvanized steel pipe may also be different.

Galvanized steel pipe

Galvanized steel strip is produced by first galvanizing steel raw materials and then post-processed to produce a steel pipe called galvanized strip steel pipe, also called pre-galvanized steel pipe.

The raw steel material is first produced into a common steel pipe with the required welded steel pipe specifications, and then galvanized. The galvanized steel pipe produced in this way is called hot-dip galvanized steel pipe, also known as hot-dipped galvanized steel pipe.

There is a big difference in the price of these two types of galvanized steel pipes, with galvanized strip steel pipes being much cheaper than hot-dip galvanized steel pipes. This is due to the fact that in terms of zinc layer thickness, the steel pipe produced by the hot-dip galvanizing process will be thicker and have a stronger corrosion resistance.

However, many customers still tend to buy pre-galvanized steel pipes when they ask for quotations to buy galvanized square pipes. Not only because of the cheap price, but also because on the basis of the price, there is not much difference between the use and the hot-dip galvanized steel pipe.

However, it is important to note that if you need a steel pipe with a relatively high wall thickness, such as requiring a wall thickness of 2.5mm or more. Then the steel pipe manufacturer will default to your request for a hot dipped galvanized steel pipe. This is because the raw material for pre-galvanized steel pipes, galvanized strip steel, cannot meet such wall thickness conditions.

In other words, under the same conditions of use, people will use the cheaper pre-galvanized steel pipe and choose the hot-dipped galvanized steel pipe in special cases. The characteristics of these two types of galvanized steel pipes must be distinguished.

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