Custom Fire Fighting Pipes,Seamless and Welded Steel Pipes Manufacturer Since 1991.

Pre-Galvanized Steel Pipes ERW Steel Tubes Manufacturer

Model ASTM A53/ API 5L/ ISO65
Certification API
Grade Gr.B
Out Diameter 20 – 219 mm
Wall Thickness 0.6 – 2.5 mm
Length 6M/ 12M or Customized
Usage Construction
The Thickness of Zinc 30-50 μm/㎡

ASTM A53/ API 5L ERW Pre-Galvanized Steel Pipe

A pre-galvanized pipe, also known as inline galvanized pipe or continuous galvanized pipe, is a type of pipe that is made of pre-galvanized coils and strips.

This material has been pre-coated with a layer of zinc before rolling into a pipe. This coat helps to protect the pipe from corrosion and also provides a barrier against weld seam corrosion. The thickness of zinc layer of pre galvanized pipe is 40-100 g/㎡.

Application for Pre-Galvanized Steel Tube

Pre-G.I round steel pipes are often used in construction and manufacturing applications where they are exposed to corrosive materials, including steel structures, building structures, guard rails, fences, metal furniture, solar structures, scaffolding and so on.
Pre-Galvanized Steel Pipe Used for Greenhouse Frame
Pre-Galvanized Steel Pipe Used in Highway Guardrail

Production Process

The coating is applied before the pipe is welded, and the entire process is typically done in a factory setting.
First, the galvanized steel strip is cleaned and then a coat of zinc is applied. The strip is then passed through a series of rollers to form it into a pipe shape.
Next, the weld seam is created, and finally, the pipe undergoes a final spray coating of zinc. This coat helps to protect the weld seam from corrosion.

Example Size

Note: Some of the main specifications are shown below, please contact us for more details.
Outside Diameter
Wall Thickness
0.8 – 2.5
0.8 – 2.5
1 1/4″
1.0 – 2.5
1 1/2″
1.0 – 2.5
1.0 – 2.5
2 1/2″
1.0 – 2.5
1.0 – 2.5
1.0 – 2.5

One-stop service to facilitate your purchase

The Baolai Group continues to provide service and support after your purchase. To save you time, we offer you numerous value-added services such as processing, logistics management and testing.

Processing Services:

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