Galvanized steel pipe is favored and liked by users because of its low cost, durability, good toughness, and strong protection, but people are also worried about rust. So will galvanized steel pipe rust?
1. Will galvanized steel pipe rust?
Galvanized steel pipe will rust. Because there is a layer of galvanized layer on the surface of this type of steel pipe, and the galvanized layer will be damaged after being used for a long time, causing the steel pipe to be exposed to the air, chemically react with oxygen, and oxidize. Or it is eroded by the oxygen element in the water, causing the galvanized steel pipe to rust and causing the heavy metal content in the water to be too high.
If you choose to use galvanized pipes as water pipes, a lot of rust will be generated in the pipes after a few years, which will also affect the quality of water. The water that comes out is accompanied by rust stains, is not clean, and will also pollute the sanitary ware, leading to the growth of bacteria on the inner wall. Drinking this water for a long time will lead to excessive heavy metals in the body and interfere with people's health.
2. How long is galvanized steel pipe easy to rust?
Hot-dip galvanized pipes will generally rust in 3-5 years, and the amount of zinc applied will determine its rusting time. Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metals, alloys or other materials for aesthetics and anti-rust effects. The main method used is hot-dip galvanizing. Of course, the galvanized pipe will not corrode immediately if it is rusted. If the thickness is relatively thick, the longest rusting time is more than 20 years.
3. How to derust galvanized pipe?
a. Cleaning
If you find rust on the galvanized pipe during use, you can go to the market to buy a professional steel pipe cleaning solvent, and then apply it on the surface of the steel pipe according to the product instructions, and then wait patiently for a period of time to allow the solvent to react chemically with the rust. Soon, it is very easy to remove grease, dust and other substances on the steel pipe, but it can only be used as an auxiliary means.
b. Pickling
You can also use chemical acid washing method to remove rust, and apply professional chemical solvents on the surface of the pipe, so that the scale, rust, old coating and other substances on the steel can be removed. Or you can use the electrolytic acid hand washing method to apply a polishing solution composed of sulfuric acid, phosphoric acid, and chromic anhydride on the surface of the steel, and then polish the steel to remove the grease and stains on it.
c. Tool derusting
If you are worried about the safety of chemical rust removers, you can use the most primitive method to remove rust. Use steel wire brushes or steel balls to polish the steel surface, which can also remove loose scale, rust, welding slag and other items. But the effect is not very ideal, and users will be very tired, users need to be mentally prepared.
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