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Galvanized pipes are popular in all industries because they are rust-proof and less expensive than other pipes. In daily life, galvanized pipe is most commonly used to transport gas and heating. In addition, it plays an important role in other industries as well. Here is a brief overview of its uses.

Galvanized Pipes for Sale

Galvanized Pipes

GI Steel Square Pipe

GI Steel Square Pipe

Galvanized Steel Pipes in China

Galvanized Steel Pipes

1. Conveyance Pipeline

When galvanized steel pipe is used as a transmission pipe, it can transport fluids and gases such as water, oil, natural gas, gas, steam, etc. In addition, it can also be used as a tap with pipe for agricultural irrigation and a pipe for sprinkler irrigation.

2. Tubes for Thermal Equipment

Like boiling water tubes for boilers, superheated steam tubes, superheated tubes for locomotive boilers, large smoke tubes, small smoke tubes, arch brick tubes, and high temperature and high-pressure boiler tubes can be manufactured using galvanized steel pipes.

3. Tubes for Mechanical Industry

Galvanized tubes can be used in the mechanical industry, such as aviation structural tubes, automobile semi-axle tubes, axle tubes, automobile tractor structural tubes, tractor oil cooler tubes, square and rectangular tubes for agricultural machinery, transformer tubes, and bearing tubes.

Galvanized Pipe for Steam Piping

Steam Pipe

Natural Gas Pipeline

Natural Gas Pipeline

4. Petroleum Geological Drilling Tubes

Galvanized steel pipes can be used as petroleum drilling pipes, petroleum drilling rods, drilling joints, petroleum oil pipes, petroleum casing, various pipe joints, geological drilling pipes (core pipes, casing, active drilling rods, drilling joints, press hoops, and pin joints, etc.).

5. Pipes for the Chemical Industry

In the chemical industry, galvanized pipes are often used to make petroleum cracking pipes, heat exchangers and pipes for chemical equipment, stainless acid-resistant pipes, high-pressure pipes for fertilizers, and pipes for transporting chemical media because of their good anti-corrosion properties.

6. Tubes for Various Other Industries

Galvanized tubes are also used for other purposes, such as tubes for containers (high-pressure gas cylinders and general containers), instrumentation and medical equipment, etc.

Galvanized Steel Pipe for Architecture


Galvanized Pipes for Industrial Pipelines

Industrial Tubes

Galvanized Pipes for Heat Exchangers

Heat Exchangers

Can You Use Galvanized Pipe for Water?

Galvanized pipes can be used as water pipes. However, galvanized water pipes tend to produce a lot of rust scale inside the pipes after long-term use. The water that flows out of galvanized pipes after rusting not only pollutes sanitary ware but also breeds bacteria. In addition, rust can cause high levels of heavy metals in the water, which is a serious health hazard. If you are using galvanized water pipes in your home, it is recommended to clean them regularly to keep them clean. Moreover, you can also seek help from experts such as Wanzhi Steel, a professional galvanized pipe manufacturer that can specialize in customizing galvanized pipe solutions for you. Feel free to contact us for more details.

Water Pipes

Galvanized Water Pipes

Galvanized Steel Tubes for Sale

Galvanized Steel Tubes for Sale

GI Pipes in Wanzhi Steel

GI Pipes in Wanzhi Steel

Your Galvanized Pipe Solutions Provider

Wanzhi Steel can customize galvanized pipes of different shapes and sizes for you according to your project requirements. If you need to order in large quantities, we can also provide you with the factory sales price. In addition, we have rich experience in production and export. Due to high quality products and superior strength, customers from Chile, Philippines, Brazil, and other countries have established long-term partnerships with us. If you are looking for a galvanized pipe manufacturer in China, please feel free to contact us for more details.


  • 17 years+

    Metal material industry exprience

  • 12 years+

    Import and export experience

  • 120 +

    Countries / regions have global cooperation

  • 1000 +

    Annual export volume

Seamless pipe has the advantages of excellent mechanical properties and easy machine processing. Thus it has been reused in many industries. Wanzhi Steel produces seamless steel pipes in both cold-drawn and hot-rolled processes. In addition, we can provide exclusive solutions to our customers according to their different needs. Next, we will show you how seamless steel pipes are made.

Seamless Stee Pipe in China

Seamless Stee Pipe

Different Sizes of Seamless Tubes

Seamless Pipe Size

SS Steel Pipe for Sale

SS Steel Pipe

Hot Rolled Seamless Pipe Production Process

Round pipe billet → heating → perforation → three-roll slant rolling, continuous rolling or extrusion → deburring → sizing (or reducing) → cooling → billet → straightening → hydrostatic test (flaw detection) → marking → storage

1. First, the solid pipe billet is removed from the surface defects and cut to the required length. Then the billet is centered on the end face of the piercing end, sent to the heating furnace for heating, and pierced on the piercing machine.

2. In the perforation while constantly rotating and advancing. Under the action of rolls and top head, a cavity is gradually formed inside the pipe billet, which is called a burr pipe.

3. The burr pipe is sent to the automatic rolling mill to continue rolling. Finally, the wall thickness is equalized by the equalizing machine and then sized by the sizing machine to meet the specifications.

Hot Rolling Process of Seamless Steel Pipe

Hot Rolling Process

Seamless Steel Pipe Quality Inspection

Quality Inspection

Hot Rolled Seamless Pipe Manufacturer

Hot Rolled Seamless Pipe

Cold-drawn Seamless Pipe Production Process

Round pipe billet → heating → piercing → beating → annealing → pickling → oiling (copper plating) → multiple cold drawing (cold rolling) → billet → heat treatment → straightening → hydrostatic test (flaw detection) → marking → storage

The raw material of cold drawn seamless pipe is hot rolled steel coil. After pickling to remove the oxidation skin and then cold rolled several times. Therefore, its surface quality, appearance, and dimensional accuracy are higher than that of hot-rolled seamless steel pipe. But the quality of seamless steel pipe is good whether it is manufactured by cold-drawn or hot-rolled process. You can choose according to your needs.

Cold Drawn Seamless Pipe in Wanzhi Steel

Cold Drawn Seamless Pipe

Cold Drawn Seamless Tube

Cold Drawn Seamless Tube

Precautions for Selecting Seamless Tubes

1. Choose Environmentally Friendly Materials

When buying seamless steel pipes, try to choose some healthy and environmentally friendly materials. If you are going to buy seamless pipes for home plumbing use, it is recommended that you first use your nose to smell whether this water pipe has some odor or pungent smell. If there is an odor, do not choose, otherwise, long-term use will cause harm to the body.

2. Choose According to Appearance

When buying seamless steel pipe, you can observe its surface color. If the surface of seamless steel pipe is too rough and uneven in thickness, then this must be of inferior quality.

3. Check the Manufacturer’s Certificate

Legitimate manufacturers of seamless pipes can provide relevant certificates. If they can’t, then it means that there is a quality problem with the pipe. Be sure to keep your eyes peeled and choose a regular manufacturer.

Steel Pipes for Sale

Large Size Seamless Pipes

SS Tube for Sale

Seamless Steel Tube for Sale

Seamless Steel Pipe Packaging

According to GB2102-88, there are three kinds of packaging for seamless steel pipes: bundling, boxing, oiled bundling, or oiled boxing.

Wanzhi Steel can ship according to the packaging method specified by customers. If you have special requirements, please make sure to inform us in advance. In addition, we have our factory and seamless steel pipe production line, with the ability to accept large quantity orders. Finally, if you are looking for high quality seamless steel pipes, please feel free to contact us for more details.

Steel Tube Wanzhi Steel

Seamless Pipes in Wanzhi Steel

Seamless Steel Tubes in Stock

Seamless Steel Tubes in Stock


Wanzhi Steel produces seamless steel pipes in different materials, including galvanized seamless pipes and stainless steel seamless pipes. You can choose according to your actual needs. You can also browse our website to find other products suitable for your project. Also, if you have any questions, don’t hesitate to contact us now for more details. Wanzhi Steel is looking forward to cooperating with you.