Product Overview
Galvanized Welded Steel Pipe is manufactured by forming steel strips into tubular sections and joining the edges through high-frequency electric resistance welding.
A protective zinc coating is then applied to create a corrosion-resistant barrier that significantly extends the service life of the steel pipe.
Compared with ordinary black steel pipes, galvanized welded pipes provide superior protection against rust, moisture, and environmental exposure.
Technical Specifications
|
Item |
Specification |
|
Outside Diameter |
21.3 mm – 219.1 mm |
|
Wall Thickness |
0.8 mm – 8.0 mm |
|
Length |
1 m – 12 m |
|
Manufacturing Process |
ERW |
|
Zinc Coating |
30–600 g/m² |
|
Surface Finish |
Hot-Dip Galvanized / Pre-Galvanized |
|
End Type |
Plain / Threaded / Grooved / Beveled |
Size Chart
|
OD (mm) |
Thickness (mm) |
|
21.3 |
0.8–3.0 |
|
33.4 |
1.0–4.0 |
|
48.3 |
1.5–6.0 |
|
60.3 |
1.5–8.0 |
|
76.1 |
2.0–10.0 |
|
114.3 |
2.5–14.0 |
|
168.3 |
3.0–16.0 |
|
219.1 |
4.0–18.0 |
|
273 |
5.0–20.0 |
|
325 |
5.0–20.0 |
|
406 |
6.0–20.0 |
|
508 |
6.0–20.0 |
|
610 |
6.0–20.0 |
Product Features
Excellent Corrosion Resistance
The zinc coating protects the steel surface from oxidation and environmental corrosion.
Long Service Life
Suitable for both indoor and outdoor applications, with significantly longer service life than uncoated steel pipes.
High Structural Strength
Advanced ERW welding technology ensures reliable weld integrity and mechanical performance.
Cost-Effective Solution
Provides an excellent balance between durability, performance, and overall lifecycle cost.
Easy Installation
Compatible with threading, grooving, welding, and mechanical coupling systems.
Attractive Surface Finish
Uniform galvanized coating provides a clean, professional appearance.
Industries We Serve
Construction
• Structural supports
• Building frameworks
• Scaffolding systems
Water Supply
• Municipal water networks
• Rural water systems
• Utility pipelines
Fire Protection
• Fire sprinkler systems
• Fire-fighting pipelines
Agriculture
• Irrigation systems
• Greenhouse structures
Infrastructure
• Public utility projects
• Transportation projects
• Municipal engineering
Industrial Manufacturing
• Equipment structures
• Factory construction
• Mechanical support systems
Available Steel Grades
• Q195
• Q215
• Q235
• Q345
• ASTM A53 Grade A
• ASTM A53 Grade B
• S235JR
• S275JR
• S355JR
Galvanized Welded Pipe vs Black Steel Pipe
|
Item |
Galvanized Pipe |
Black Steel Pipe |
|
Corrosion Resistance |
Excellent |
Low |
|
Outdoor Durability |
Excellent |
Limited |
|
Maintenance Cost |
Low |
Higher |
|
Rust Protection |
Excellent |
Poor |
|
Service Life |
Long |
Shorter |
|
Lifecycle Cost |
Lower |
Higher |
Custom Manufacturing Options
|
Custom Item |
Available Options |
|
Diameter |
21.3mm–219.1mm |
|
Thickness |
0.8mm–8.0mm |
|
Length |
1m–12m |
|
Zinc Coating |
30–600g/m² |
|
Pipe Ends |
Plain / Threaded / Grooved / Beveled |
|
Thread Standard |
BSP / NPT |
|
Surface Treatment |
Passivated / Anti-White Rust |
|
Marking |
Printing / Stamping |
|
Packaging |
Customized Export Packaging |
|
Branding |
OEM Logo Available |
Packaging & Shipping
Export Packaging Options:
• Steel strip bundling
• Plastic end caps
• Waterproof wrapping
• Woven bags
• Wooden cases upon request
Available Trade Terms:
• EXW
• FOB
• CFR
• CIF
Shipping Methods:
• 20GP Container
• 40GP Container
• 40HQ Container
• Bulk Vessel Shipment
Why Choose Youcheng as Your Steel Pipe Supplier?
Selecting the right supplier is just as important as selecting the right product.
Stable Production Capacity
Our manufacturing system supports large-volume orders and long-term supply contracts for distributors, construction companies, and infrastructure projects.
Production Advantages
• Consistent raw material sourcing
• Efficient production scheduling
• Stable monthly production capacity
• Support for bulk and repeat orders
• Fast response to urgent project requirements
Strict Quality Assurance
Quality consistency is critical for engineering projects and international distribution.
Every batch undergoes:
• Raw material inspection
• Weld seam inspection
• Dimensional verification
• Zinc coating thickness testing
• Mechanical property testing
• Hydrostatic testing
• Final visual inspection
Third-party inspections from SGS, BV, TUV, or customer-designated agencies are available.
Reliable Export Experience
Our steel pipe products have been supplied to customers across:
• Middle East
• Southeast Asia
• Africa
• South America
• Europe
We understand international standards, export packaging requirements, customs documentation, and project delivery schedules.
Lower Procurement Risk
Working with Youcheng means:
• Stable product quality
• Consistent specifications
• Reliable delivery schedules
• Professional export support
• Reduced sourcing risk
Our Certificate
Frequently Asked Questions
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