Carbon steel pipe is made from an alloy of iron and carbon, which is strong, durable and resistant to corrosion. However, because its main component contains iron, it is prone to oxidation reaction in a humid environment and forms rust. This article will introduce the reasons and preventive measures of carbon steel pipe rust in detail.
Causes of Carbon Steel Pipe Rust:
1. Exposure to the medium that causes product corrosion
2. Exposure to corrosive environment
Preventive Measures of Carbon Steel Pipe Rust:
1. Passivation
Rust is prevented by passivation. Passivation treatment is to form a protective oxide layer on the surface of carbon steel, which can prevent the steel from being further corroded by the environment.
2. Surface coating
Surface coatings such as galvanizing and painting can effectively prevent carbon steel from rusting, and form a protective film on the surface, which can resist corrosion from the external environment and improve the hardness and durability of the surface.
3. Cement coating
Cementitious coatings are another way to protect carbon steel from rust. Although cement will absorb water, it will directly form a protective layer on the surface of the steel pipe. Therefore, cement coating is also a method of rust prevention.
4. Anti-rust oil treatment
The anti-rust oil added with anti-rust agent can prevent the rust of carbon steel well, and can be used for anti-rust treatment of engineering machinery, automobile engine parts, etc. The use of high-density grease and preservatives can prevent oxygen from entering the carbon steel surface, thereby reducing the occurrence of oxidation reactions.
5. Electronic rust removal technology
The application of electronic rust removal technology can completely remove the rust substances generated on the surface of carbon steel without changing the physical properties of the steel, so as to achieve the purpose of rust prevention.
To sum up, carbon steel will rust even when exposed to small amounts of moisture, including water vapor in the air. We need to take some effective anti-rust measures to prolong the service life and beautiful appearance of carbon steel products.