Galvanized steel pipe is made of low carbon steel. Then it is covered with zinc coating through hot-dip or electro-galvanizing process to prevent rusting. Galvanized steel tubes feature with excellent corrosion resistance and durability. Therefore, it is very versatile in construction, chemical, electric power, machinery and other industries.

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Product Introduction

Galvanized Steel Pipe Types

Galvanized pipe, also known as galvanized steel pipe, is divided into hot-dip galvanizing and electro-galvanizing. 

• Hot-dip Galvanized Steel Pipe

As the name implies, the steel sheet is immersed in the molten zinc bath continuously so that the coil is covered with a layer of zinc on its surface. Hot-dip galvanizing is immersing the cleaned iron sheet into the molten zinc bath at about 450 degrees to form a zinc layer. The zinc content should not be less than 99%. It is the most commonly used method.

• Electro-galvanized Steel Pipe

Electro-galvanizing is a process of applying a layer of zinc to steel through electroplating, with a saline anode and steel conductor. It basically ensures the same performance as cold rolled sheets through cold galvanizing. Also, it is able to enhance the corrosion and heat resistance of steel. Its surface is smooth and uniform, and it has good workability. Also, it looks shiny and silver-white, which is more beautiful than a hot-dip one. Moreover, it is cheaper than hot-dip galvanized steel. However, the zinc coating is thinner, and the corrosion resistance is not as good as that of hot-dip galvanized coils.

There are two types of galvanized pipes for sale, namely, hot-dipped galvanized and cold-galvanized pipes. Generally, the former is more expensive than the latter one because it has a thicker zinc layer and the production process is more complex. But the hot dip galvanized steel pipe is also more corrosion-resistant and durable than the electro-galvanized one. In the long term, the hot-dip galvanized steel tube is more cost-effective.

Advantage

Coated in zinc, galvanized steel pipes are protected from oxidation and rust, which ultimately prevents deterioration of the pipe. They are a great option when you need to protect your steel pipes from a corrosive environment. The protective quality of galvanized pipe is created through a hot-dipping process, where the zinc then provides a protective layer that will rust away before any of the steel is affected. In terms of durability, a galvanized steel pipe can last well over 100 years, depending on the amount of corrosion exposure.

Galvanized steel pipe maintains a wide range of benefits, suitable for use in highly corrosive environments. The semi-smooth, zinc finish of galvanized steel pipe provides a layer of protection that is not seen in other types of protective materials. The galvanized coating process protects the underlying steel from encountering corrosive elements that could deteriorate the steel and ultimately weaken its structural integrity. Main advantages of galvanized structural pipe include:

• Easy to inspect

• Less repairs 

• Rugged toughness

• Easier to maintain than standard painted pipes

• Protected by advanced ASTM standardization

Quality Control

We have our own Physical & Chemical Testing Center Lab to guarantee our product quality. Our test items & instrument fully meet international standards.

Applications

Galvanized steel pipe is an excellent choice for many applications and processing techniques. Some common applications for galvanized steel pipe include:

• Plumbing

• Construction

• Hot and cold liquid transportation

• Bollards

• Exposed environments

• Marine environments
• Railings or Handrails

• Fence Posts and Fencing 

Product Inventory

We are a professional steel dealer. With the support of the most professional steel manufacturers and a large number of customers, we can not only provide you with ordinary steel but also help you find very personalized steels, such as special steel grades, Special sizes, special craft shapes.