Galvanized pipes are commonly used for conveying gas and heating. How many years will galvanized pipes rust after use? What should I pay attention to when storing galvanized pipes? Let’s take a look at the following related knowledge together.
How many years can galvanized pipes rust after use

Hot dip galvanized pipes will rust after 8 to 10 years of use, with a service life of more than 20 years; 2. Hot dip galvanized square pipes will rust after 2-3 years, with a service life of 3-5 years; 3. Cold galvanized pipes will start to rust after about 1 year, and their service life is 2-3 years. However, attention should be paid to the usage environment. Galvanized pipes with high acid and alkali strength will rust ahead of time and have a sharp decrease in lifespan.
What are the differences between cold galvanized pipes and hot galvanized pipes

Hot plating is achieved by forming alloy coatings with other metals; Cold plating refers to electroplating, which contains a small amount of zinc plating and does not exceed 20 grams per square meter; The corrosion resistance of hot plating is dozens of times stronger than that of cold plating.

There are also significant differences in homework methods. Zinc can only be melted by hot plating at temperatures greater than 450 degrees Celsius, but cold plating can be done at room temperature.

The difference in thickness of the galvanized layer is also significant, with the hot-dip galvanized layer being much thicker.

The difference in smoothness of steel pipes is also very obvious, and the surface of cold plating is much rougher.

The price difference is significant, and the price of cold galvanized steel pipes is much lower.

Cold dip galvanized pipes only have one side galvanized, while hot dip galvanized pipes are fully galvanized.

There is also a significant difference in adhesion, with hot dip tubes having very strong adhesion, while cold dip tubes are more prone to detachment.