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.

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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

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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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How many materials are there in SSAW steel pipe?

As an important engineering material, SSAW steel pipe is widely used in many fields. SSAW steel pipes of different specifications have different characteristics and application scenarios, and their performances are also different. This article will introduce the uses and performance comparisons of different specifications of SSAW steel pipes for better selection and use of spiral pipes.

1. Types and characteristics of SSAW steel pipes of different specifications

SSAW steel pipes can be divided into many types according to material, production process, specifications and sizes. Common types include: carbon steel spiral pipe, stainless steel pipe, alloy steel pipe, galvanized spiral pipe, etc. Spiral tubes of different specifications have different sizes, wall thicknesses, weights, etc., so they have different characteristics and application ranges.

2. Comparison of uses of SSAW steel pipes of different materials

Carbon steel SSAW steel pipe: mainly used to transport water, gas, liquid and other media, widely used in construction, chemical industry, petroleum and other fields. Its advantages are good corrosion resistance, long service life and relatively low price.
Stainless steel pipe: mainly used to transport corrosive media, such as acid, alkali, salt, etc. Its advantages are good corrosion resistance, beautiful appearance, and suitable for various occasions.
Alloy steel pipe: It has the characteristics of high strength and corrosion resistance. It is mainly used in the fields of high-pressure, high-temperature and high-strength medium transportation such as chemical industry, petroleum and nuclear power.
Galvanized SSAW steel pipe: mainly used to transport gas, liquid and other media, especially suitable for occasions requiring anti-corrosion. Its advantages are good anti-corrosion performance and long service life.

3. Performance comparison of SSAW steel pipes of different specifications

Comprehensive performance: The comprehensive performance of spiral pipes of different specifications is different. Generally speaking, large-diameter, thick-walled spiral pipes have higher strength and pressure resistance, while small-diameter, thin-walled spiral pipes have better toughness and impact resistance.
Service life: The service life of the spiral tube is affected by many factors such as material, production process, medium properties, etc. Generally speaking, stainless steel pipes have a longer service life, while carbon steel spiral pipes have a relatively shorter service life.
Process performance: The process performance of spiral pipes of different specifications also differs. Large diameter spiral pipes are relatively difficult to bend and cut, while small diameter spiral pipes are easier to process and install.

4. How to choose suitable SSAW steel pipe specifications

When choosing the appropriate SSAW steel pipe specification, you need to consider the following factors:
Application scenario: It is necessary to select the appropriate type and specification of SSAW steel pipe according to the actual application scenario. For example, when transporting corrosive media, you need to choose stainless steel pipes or galvanized SSAW steel pipes; when transporting high-pressure and high-temperature media, you need to choose alloy steel pipes.
Medium properties: It is necessary to understand the properties of the conveying medium, such as temperature, pressure, corrosiveness, etc., in order to select appropriate materials and specifications.
Process performance: Processing and installation requirements need to be considered to select appropriate specifications and types.
Economy: On the premise of meeting the use requirements, it is necessary to choose spiral pipe specifications with reasonable prices.

Different specifications of SSAW steel pipes have different characteristics and application ranges, and their performances are also different. When selecting and using SSAW steel pipes, it is necessary to comprehensively consider the actual application scenario, medium properties, process performance, economy and other factors to select appropriate specifications and types. At the same time, attention should also be paid to maintenance and upkeep during use to ensure the service life and safety of SSAW steel pipes.

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