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Pre-Galvanized Steel Pipes ERW Tubes Manufacturer & Supplier
Product Overview
ASTM A53 / API 5L ERW Pre-Galvanized Steel Pipe is manufactured from zinc-coated steel coils and strips, which are galvanized before being formed and welded into pipe. The pre-applied zinc layer provides reliable corrosion protection and a clean, uniform surface, while the ERW process ensures consistent dimensions and stable weld quality. With zinc coating options of 40–100 g/m², the pipe can be supplied in various sizes and lengths for construction, structural frameworks, scaffolding, guardrails, greenhouse structures, and general engineering applications.
Example Size
Note: Some of the main specifications are shown below, please contact us for more details.
|
NPS
|
Outside Diameter
|
Wall Thickness
|
|
mm
|
mm
|
|
|
1/2″
|
21.3
|
0.8 – 2.5
|
|
1″
|
33.4
|
0.8 – 2.5
|
|
1 1/4″
|
42.2
|
1.0 – 2.5
|
|
1 1/2″
|
48.3
|
1.0 – 2.5
|
|
2″
|
60.3
|
1.0 – 2.5
|
|
2 1/2″
|
73.0
|
1.0 – 2.5
|
|
3″
|
88.9
|
1.0 – 2.5
|
|
4″
|
114.3
|
1.0 – 2.5
|
Application Scenarios
Pre-galvanized steel tubes are widely used in construction, manufacturing, and structural projects where good corrosion resistance and a durable surface are required. They are commonly applied in steel structures, building frameworks, guardrails, fencing systems, metal furniture, solar mounting structures, scaffolding, greenhouse frames, and other fabricated applications exposed to moisture or corrosive conditions.
Why Choose Us
Choosing Fuyuansheng means working with a steel pipe supplier focused on dependable quality, efficient production, and long-term project support. We combine manufacturing experience with practical technical expertise to handle both regular specifications and customized steel pipe requirements.
Our 20,000㎡ production facility and team of 120 experienced professionals, including 35 technical engineers, support consistent production, quality inspection, and technical assistance throughout the order process. This allows us to maintain stable supply capabilities for demanding infrastructure and construction projects.
Our factory is located just 45 km from the seaport, providing an efficient logistics connection for overseas orders. This location helps simplify transportation, shorten lead times, and control shipping-related costs.
More importantly, we focus on delivering value beyond the product itself. Consistent quality, dependable delivery, responsive service, and professional technical support are the foundation of our cooperation, helping customers minimize project risks and build reliable long-term supply relationships.
FAQs
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Q1: Can Fuyuansheng provide customized steel pipe sizes and specifications?
A1:Yes. Fuyuansheng can supply steel pipes in different sizes, wall thicknesses, lengths, and specifications according to project requirements. Customized solutions are available for construction, infrastructure, and other industrial applications. -
Q2: How does Fuyuansheng ensure consistent steel pipe quality?
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Q3: How does the factory location benefit international customers?
Production Process
The production of pre-galvanized steel pipes begins with galvanized steel strips, which are prepared and cleaned to ensure a suitable surface for pipe forming. The coated strip is gradually shaped into a round tube through a series of forming rollers. Once the edges are aligned, high-frequency welding is used to create a continuous ERW seam. After welding, the pipe receives additional zinc treatment around the welded area to reinforce surface protection and help minimize the risk of corrosion at the seam.
