Common Anti Corrosion Methods For Spiral Steel Pipes

Spiral steel pipes often require anti-corrosion treatment to extend their service life and reduce maintenance costs. In this article, Union Steel will detail some common anti-corrosion methods for spiral steel pipes.

1. 3PE anti corrosion

3PE anti-corrosion refers to coating three layers of polyethylene material on the surface of steel pipes, which is divided into three-layer structures of inner polyethylene (HDPE), medium binder, and outer polyethylene (MDPE). 3PE anti-corrosion can add excellent waterproof, moisture-proof and anti-corrosion properties to steel pipes.

2. 2PE anti corrosion

2PE anti-corrosion refers to coating two layers of polyethylene materials on the surface of steel pipes, including an inner layer of polyethylene (HDPE) and an outer layer of polyethylene (MDPE). 2PE anti-corrosion has good waterproof, moisture-proof and anti-corrosion properties, but compared with 3PE anti-corrosion, its corrosion resistance is slightly inferior.

3. Epoxy coal tar anti corrosion

Epoxy coal pitch anti-corrosion coating has good weather resistance, abrasion resistance and chemical corrosion resistance, and is suitable for water pipes, oil pipes, city gas pipes and other fields.

4. Epoxy powder anti corrosion

Epoxy powder coatings are based on epoxy resin and have good adhesion, weather resistance and chemical resistance.

5. Galvanizing and anti-corrosion

Galvanizing anti-corrosion of steel pipe is to form a layer of zinc on the surface of the steel pipe through hot-dip galvanizing or electro-galvanizing process, which plays an anti-corrosion role. The zinc layer has good corrosion resistance and adhesion.

6. Glass flake anti corrosion

Glass flake anti-corrosion coating contains a large number of glass flakes and has excellent weather resistance, abrasion resistance and chemical corrosion resistance. During the coating process of glass flake anti-corrosion coating, the glass flakes will form a dense protective layer, which effectively blocks the intrusion of moisture and chemical substances, thereby extending the service life of the steel pipe.

7. Polyurethane anti corrosion

Polyurethane coatings have excellent weather resistance, abrasion resistance, chemical resistance and good adhesion. Polyurethane anti-corrosion coating can effectively prevent the intrusion of moisture, oxygen and chemical substances and extend the service life of steel pipes.

8. Polypropylene anti corrosion

Polypropylene anticorrosive coating has good weather resistance, abrasion resistance, chemical resistance and adhesion. Polypropylene anti-corrosion coating can effectively resist the intrusion of moisture, oxygen and chemical substances, extending the service life of steel pipes.

Various anti-corrosion methods have different performance and application ranges. Therefore, when choosing an anti-corrosion method, it is necessary to make a reasonable choice based on the specific use environment and purpose of the steel pipe. At the same time, factors such as the cost of anti-corrosion materials and construction difficulty must be fully considered to ensure the durability and reliability of the anti-corrosion effect.

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