Galvanised Pipe for Sale | Hot Dip GI Steel Tubing

Welcome to Wanzhi Group Co., Ltd

Galvanized Pipe for Sale

We are a wholesale manufacturer of galvanized pipe for sale and are well-known at home and abroad for our excellent quality and reasonable prices. Now that our product is very competitive, our company has formulated a complete set of production and sales models to meet customer needs, continuously improve product quality, and increase more customer groups. Galvanized pipe for sale in our company is widely applied to metal structure facilities in various industries due to its excellent corrosion-resistant and low costs, such as machinery, railways, coal mines, and bridges, Besides, as a line pipe, it is a great choice to transport low-pressure fluid, such as water, gas, oil, etc. Galvanized steel tubing maintains comparable strength with a durable surface coating.

Rectangular Galvanized Tubing

Rectangular Galvanized Tubing

Square Galvanized Steel Tubes

Square Galvanized Steel Tubes

Round Galvanized Steel Tubes

Round Galvanized Steel Tubes

Galvanized Steel Pipe Type

There are several different processes for galvanized steel pipes. Both hot-dipped galvanized steel pipes and cold galvanized steel pipes are galvanized. Hot-dip galvanizing is to melt zinc, while cold galvanizing is mainly carried out by electrolysis. They are very different in production, but the properties of the finished products are similar, and they all have good anti-corrosion effects. You can choose the right type for your project according to your needs. Hot-dip galvanized steel pipe and cold galvanized steel pipe are two commonly used galvanized iron pipes.

1.Hot Dipped Galvanized Pipe for Sale

Hot-Dip galvanized pipe is more versatile than cold dip galvanized pipe. The manufacturing process is using steel pipes of removed rust dipped into zinc liquid of 500℃, and making zinc layer adhering to steel surface to protect steel from rusting. The thickness of hot-dip galvanized pipe widely ranges from 35 μm to 250 μm, hot-dip galvanized steel pipe can show good performance in this size. The advantage of a hot-dip galvanized steel pipe is that it has strong anti-corrosion ability, and the adhesion and hardness of the galvanized layer are better.

Hot-dip Galvanizing Process

Hot-dip Galvanizing Process

2.Cold Galvanized Steel Pipe for Sale

Cold galvanized pipe for Sale is also known as electro-galvanized pipe, which is using electric chemical processing coated Zinc layer on steel pipe. It can enhance corrosion resistance, wear resistance, electrical conductivity, reflectivity and improve the aesthetics of steel pipe. But the amount of galvanization is only 10-50g/㎡. The outer surface of cold galvanized steel pipe is smooth and bright. Generally, there is only a small amount of zinc layer on both ends of cold galvanized steel pipe, and there is no galvanized layer further down. The cold galvanized steel pipe requires a lot of water and the production cost is higher.

Difference Between Hot-dip Galvanized and Cold Dip Galvanized Pipe

1.The thickness of hot-dipped galvanized pipe widely ranges from 35μm to 650μm. While cold zinc layer thickness ranges 5-15μm. This is the reason why hot-dipped galvanized pipe has better anti-corrosion performance than electro-galvanized steel pipe.

2.The overall appearance of hot-dip galvanizing pipe is slightly rough, and the surface of the cold dip galvanized pipe is relatively smooth.

3.The hot-dip galvanized zinc layer has better adhesion and hardness. However, cold dip galvanizing has a lower amount of zinc, so the adhesion is worse than that of hot dip galvanizing, and it is easy to fall off in a humid environment.

4.The service life of hot-dip galvanized steel pipe is better than that of cold dip galvanized steel pipe, and the service life of hot-dip galvanized steel pipe can reach about 50 years.

Hot-dip galvanized steel pipe has a better anti-corrosion effect and long service life, and the price is relatively cheap. Therefore, hot-dip galvanizing is often used in industrial applications.

Hot-dipped vi Cold Galvanized Tubes

Hot-dipped vi Cold Galvanized Tubes

Hot Dipped Galvanized Pipe

Hot Dipped Galvanized Pipe

Cold Galvanized Pipe for Sale

Cold Galvanized Pipe for Sale

Applications of Galvanized Pipe For Sale

The galvanized tube is used in a variety of settings. Below are applications of pre-galvanized steel pipes in various industries.

1.Gas and Liquid Transportation

Galvanized steel tube is widely used to transport low-pressure fluid, such as gas, water, steam, etc. Moreover, it is also used as oil well pipes and oil pipelines in the petroleum industry, especially offshore oilfields.


The material of the galvanized steel tube is suitable for both outdoor and indoor plumbing, even in harsh weather conditions, and it is easy to install and saves engineering time.

3.Automobile and Aerospace Industry

The galvanized tube is suitable for the automotive and aerospace industries because it is a light and durable material that can effectively reduce costs while achieving its goals.


A large number of agricultural manufacturers choose to use the galvanized tube. because it can make the greenhouse more sturdy and prevent pipes corrosion in a humid environment.

Galvanized Piping for Oil Refinery

Galvanized Piping

Galvanized Pipe Structure

Galvanized Pipe Structure

Solar Panel Rack

Solar Panel Rack

Why Choose Wanzhi Steel?

There are many steel companies in the world, but few companies like Wanzhi provide high-quality products and high-quality after-sales service. Unique advantages to stand out from the competition. We use our years of industry experience and innovation to provide steel production and processing solutions.

Leading Galvanized GI Pipe Manufacturer

Wanzhi has been serving businesses and industries in China and the world for many years. Our industrial experience and knowledge answer your questions and provide solutions for your industrial needs.

Provide Quality Galvanized Tube

We provide our customers with top-quality products at competitive prices. We work for our customers, to make sure their unique needs are met. Our experience helps us contribute to each customer’s success. By working hard for our customers.

Deliver the Best Industrial Galvanized Iron Pipe

Wanzhi matches your business needs with the best products from our manufacturers. If you have any needs, please contact us immediately. We try our best to let customers achieve the best purchases at the lowest cost. If you want to know more about product prices, company background, etc., please contact us immediately! Looking forward to your email!

  • 17 years+

    Metal material industry exprience

  • 12 years+

    Import and export experience

  • 120 +

    Countries / regions have global cooperation

  • 1000 +

    Annual export volume