Galvanised Precision Tube

Galvanised Precision Tube

Hot-dip galvanized steel pipe: first pickle the steel pipe to remove iron oxide on the surface of the steel pipe, then clean it in a tank of ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and finally It is sent into a hot-dip coating tank, and the molten metal reacts with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanized steel pipe has the advantages of uniform coating, strong adhesion and long service life when using the tubes.

Cold galvanized pipe: It is electro-galvanized. The amount of galvanized is very small, only 10-50g/m2. Its corrosion resistance is different than that of hot-dip galvanized pipe. The galvanized layer of cold galvanized steel pipe is an electroplating layer, and the zinc layer is layered independently from the steel pipe substrate and is easy to fall off if the process is not well treated. Therefore, the corrosion resistance of cold galvanized steel pipes is not as good as the hot galvanized pipes

Description

1. Brief introduction of galvanised pipe

Galvanized steel pipe is a steel pipe with a hot-dip galvanized or electro-galvanized layer on the surface. Galvanized steel pipe has the advantages of strong corrosion resistance and long service life. Therefore, galvanized steel pipes are widely used in pipelines, construction, chemical and other machinery industries for general low-pressure fluids such as water, gas, and oil.

With the rapid development of Malaysia’s economy, the demand for galvanized steel pipes is increasing. Our high quality galvanized steel pipes are very popular for worldwide customers.

2. Advantages of galvanized steel pipe

(1) Low processing cost: The cost of hot-dip galvanized rust prevention is lower than that of other paint coatings.

(2) Durability: galvanized steel pipe has the characteristics of surface gloss, uniform zinc layer, no leakage plating, no dripping, strong adhesion and strong corrosion resistance.

(3) Good reliability: The galvanized layer of the galvanized steel pipe and the steel are metallurgically bonded, so the durability of the coating is more reliable.

(4) The toughness of the coating is strong: the galvanized layer of the galvanized steel pipe forms a special metallurgical structure, which can withstand mechanical damage during transportation and use.

(5) Comprehensive protection: Every part of the plated parts can be galvanized, and can be fully protected even in depressions, sharp corners and hidden places.

(6) Time-saving and labor-saving: The galvanizing process of galvanized steel pipe is faster than other coating construction methods, and it can avoid the time required for painting on the construction site after installation.

3. Classification of galvanized steel pipe

Galvanized steel pipe is divided into hot-dip galvanized steel pipe and cold-galvanized steel pipe.These two types of galvanized steel pipes are mainly popular in the market.

(1) Hot-dip galvanized steel pipe: first pickle the steel pipe to remove iron oxide on the surface of the steel pipe, then clean it in a tank of ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and finally It is sent into a hot-dip coating tank, and the molten metal reacts with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanized steel pipe has the advantages of uniform coating, strong adhesion and long service life.

(2) Cold galvanized pipe: It is electro-galvanized. The amount of galvanized is very small, only 10-50g/m2. Its corrosion resistance is much different than that of hot-dip galvanized pipe. The galvanized layer of cold galvanized steel pipe is an electroplating layer, and the zinc layer is layered independently from the steel pipe substrate and is easy to fall off. Therefore, the corrosion resistance of cold galvanized steel pipes is poor.

If you want to do hot-dip galvanized steel pipe and cold galvanized steel pipe business in the market, you should understand the characteristics of the above two categories. When you are purchasing galvanized steel pipes, there is also a focus.

4.The production process of galvanized steel pipe

Black parts inspection → hanging → degreasing → rinsing → pickling → cleaning → dipping flux → hot air drying → hot-dip galvanizing → internal and external blowing → cooling → passivation and rinsing → unloading → inspection, trimming → typing mark →Packaging, storage and transportation.
These are the manufacturing process of our galvanized steel pipe, and this knowledge can help you do a better steel pipe business in Malaysia.

5. Common specifications and dimensions of galvanized steel pipes

NAMEDNINCHOD(mm)WT(mm)
Galvanized pipe151/221.32.75
Galvanized pipe203/426.92.75
Galvanized pipe251″33.73.25
Galvanized pipe325/442.43.25
Galvanized pipe403/248.33.5
Galvanized pipe502″60.33.5
Galvanized pipe655/276.13.75
Galvanized pipe803″88.94.0
Galvanized pipe1004″114.34.0
Galvanized pipe1255″1404.5
Galvanized pipe1506″168.34.5
Galvanized pipe2008″219.16.0

6. Application of galvanized steel pipe

Hot-dip galvanized steel pipes have strong corrosion resistance and long service life, so they are widely used in construction, machinery, coal mines, chemicals, electric power, railway vehicles, automobile industry, roads, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting Machinery and other manufacturing industries.

Now most of our customers are purchasing hot-dip galvanized steel pipes. Because the performance of hot-dip galvanized steel pipe will be better. The industrialization process requires a large number of galvanized steel pipes, and we can deeply understand the application of these steel pipes in these fields.

7. Methods for derusting galvanized steel pipes

  •  First, use a solvent to clean the surface of the steel to remove the organic matter on the surface.
  • Then use tools to remove rust (wire brush), remove loose or inclined scale, rust, welding slag, etc.,
  • Use pickling method.

These tips can help you do a better job of after-sales service of galvanized steel pipes, because you can only have better customer stickiness if you are deeply involved in the market.

8. Galvanised Steel Pipe for worldwide customers

There is a large demand for galvanised steel pipes worldwide and is a major product of our company. With the increasing demand for galvanized pipes in the global market, our products are exported to Europe, America, the Middle East, Southeast Asia and other countries and regions. Grand steel is a professional manufacturer and exporter of galvanised steel pipes, we provide high-quality products and competitive prices. Sufficient inventory, support customization, welcome to contact us!

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