What is galvanized steel pipe used for?

What is galvanized steel pipe used for?

BlogDate: 08-09-2023 by: Ngoc Cam

Galvanized steel pipe has been coated with zinc to protect the steel from corrosion. GI is commonly used for outdoor construction, such as fencing, handrails, and interior plumbing applications (plumbing, fire fighting systems,…). MRS Steel will dive deeper into the issue of “What is galvanized steel pipe used for?”.

1. What is Galvanized Steel

Galvanized steel is a type of steel coated with an outer layer of zinc to prevent the formation of rust, oxidation, and environmental influences (climate, temperature, humidity, ...).

Galvanized steel is divided into hot-dip galvanizing and electroplating with different characteristics and pros and cons:

Hot-dipped galvanized steel pipe

Hot-dip galvanizing is the traditional method of coating steel pipes with a protective layer. Surface-treated steel pipes are dipped into a tank of molten zinc. The zinc layer is evenly coated on both sides, with good rust resistance, adhesion, and long life expectancy. GI's zinc coating is usually about 50 micrometers thick on average.


Electrolytic Galvanized Steel Pipe

Electrolytic galvanizing, also known as cold galvanizing, only uses a minimal amount of zinc, about 10-50g/m2, to coat the outer surface of various products. Electrolytic plating technology creates a precipitate on the metal layer, so the corrosion resistance is much worse than that of hot-dip galvanized steel. Products cold-plated have low cost, high adhesion, and low deformation at high temperatures.

2. Galvanized steel pipe classification

  • Round steel pipes: mainly used for water pipes, lamp posts, railings, stair handrails, ultrasonic piles,...
  • Square and rectangular steel pipe: Depending on the thickness of the steel pipe, it will be used as a roof frame, scaffolding, or in manufacturing furniture and motor vehicle parts...
  • Oval steel pipe: This type of galvanized steel pipe is widely used in the field of furniture, frames, cars, motorcycles, bicycles,...



3. What is galvanized steel pipe used for

Galvanized steel pipes have many outstanding features, such as high aesthetics, comprehensive protection, and reasonable life expectancy, ... when applied to projects and fields of life.

Applications in solar energy

Solar panels have a large mass of 20-24kg to ensure that the system is not affected by the effects of storms or high winds. Therefore, the support frame must be solid and capable of withstanding large loads and wind levels of 10 and 12 in stormy weather. In addition, the frames that support the solar system are placed outside and are often affected by the weather, so they must resist corrosion.

Thanks to its stable, solid, high-strength, load-bearing, and good-bearing structure, Galvanized steel can meet all the above requirements in almost all materials. The zinc coating on the outside of the steel pipes has a comprehensive protection effect, increasing the long-term use of the frame system. Therefore, galvanized steel, especially pipe, box, and V-shaped steel, is often chosen as frames for solar power systems.


Application in agriculture

Galvanized steel pipe has good rust resistance, a variety of sizes, and is easy to shape and install, so it is widely used in irrigation systems.

Black and hot-dip galvanized steel pipes are also widely used in animal husbandry. Large steel pipes are used to make feed or waste pipes for livestock and poultry.

In the fishery, fish farming cages are made from hot-dip galvanized steel pipes, replacing bamboo cages, overcoming limitations in rust resistance, life expectancy, and cage breakage when there are extensive underground waves.


Applications in plumbing

Steel pipes are widely utilized in water supply and drainage systems, high-pressure plumbing installations, or outdoor water supply networks. The nature of these projects all need large load capacity, easy to bend and shape according to the terrain and installation location, so galvanized steel pipe is the most appropriate option.

In addition, square or rectangular steel pipes are used for ventilation systems, assembling house frames, scaffolding, bearing trusses,...

Applications in telecommunications

The telecommunications system is the basis of social communication. Many telecommunications forms utilize galvanized steel pipes to produce public lighting, ultrasonic pile systems, broadcasting piles, telecommunications poles, phone wiring, equipment boxes,...


Application in construction

The application of galvanized steel pipes in the construction field must be mentioned as the critical materials for housing and civil works such as rails, gutters, fences,... These steel pipes are shiny and galvanized, have aesthetics and durability, and are suitable for outdoor applications.

4. Vietnam's galvanized steel pipe production technology

Vietnam's galvanized steel pipes are produced by advanced hot-dip galvanizing lines provided by the world's largest corporation specializing in metallurgical and steel rolling equipment, such as Danieli, Tenova, and G7 countries. The galvanized steel pipe product is strictly tested, from selecting raw materials and the production process to completing the final product. Therefore, Vietnamese steel pipe meets the import standards of many large markets such as the US, the EU, Canada, Australia,...


High-quality galvanized steel pipe products of Ton Hoa Sen, Hoa Phat, Ton Nam Kim,... are trendy and easy to buy in Vietnam. However, steel importers can buy fake and poor-quality goods due to limitations in connecting information with genuine manufacturers. Therefore, to save time and effort in purchasing, you should seek support from reputable, professional sourcing partners.

MRS Steel supplies high-quality Vietnamese steel import solutions for foreign partners. With a network connecting the most significant steel enterprises in Vietnam and an in-depth understanding of customs procedures, price policy, market fluctuations,..., MRS Steel will advise and offer optimal purchasing strategies for customers.

For any exchange and detailed quotation about Vietnam galvanized steel pipe, please contact MRS Steel via Email: for 24/7 support.