What is Galvanized Steel Pipe? Uses, Types, Sizes & Manufacturers Guide
Galvanized steel pipes are essential components in construction, plumbing, and industrial applications due to their superior corrosion resistance and durability in applications. Shineyond Group, as a galvanized steel pipe manufacturer, mainly produces high-quality pipes that meet standards. This guide explores what galvanized steel pipe is, its uses, types, sizes (galvanized steel pipe sizes).
What is Galvanized Steel Pipe?
Galvanized steel pipe are carbon steel pipes that are coated with a protective zinc layer on the surface to prevent rust and corrosion. The galvanizing process mainly includes hot-dip galvanizing (immersing steel in molten zinc) or electro-galvanizing (electrolytic galvanizing). It can make galvanized steel pipes have strong resistance to environmental damage, and the service life can be extended by 3-5 times under normal conditions compared with untreated steel pipes.
Key Benefits of Galvanized Steel Pipes:
✔ Corrosion resistant – meets the needs of outdoor and wet environments
✔ Long-lasting – The zinc coating process prevents rust and reduces maintenance costs
✔ Rugged – Maintains structural integrity even in high-pressure environments
✔ Cost-effectiveness – Lower lifecycle costs compared to stainless steel or PVC alternatives
Types of Galvanized Steel Pipes
Galvanized steel pipes are primarily categorized into galvanized square pipes and galvanized round pipes, both offering corrosion resistance and structural durability.
Galvanized Square Pipes
Shape: Rectangular/square cross-section
Uses: Construction frames, fencing, handrails, machinery supports
Advantages: High load-bearing capacity, aesthetic appeal for architectural use
Sizes: Common dimensions include 20×20mm to 150×150mm, with wall thicknesses from 0.8mm to 5mm
Galvanized Round Pipes
Shape: Circular cross-section
Uses: Water supply (galvanized steel pipe water), scaffolding, oil/gas pipelines
Advantages: Better pressure resistance, smoother fluid flow
Sizes: Standard diameters range from ½" to 8" (15mm–200mm), with wall thicknesses of 0.5mm–6mm
Both types undergo hot-dip galvanizing for long-lasting rust protection and are available in welded or seamless forms. Shineyond Group supplies high-quality galvanized steel pipes in custom sizes for industrial and construction needs.
Galvanized Steel Pipe Dimensions (Sizes & Specifications)
According to different application scenarios, there are differences in the size of galvanized steel pipes. Here are the standard sizes of Shineyond Group:
| Type | Diameter (inches/mm) | Wall Thickness (mm) | Length (m) |
|---|---|---|---|
| Seamless | 1/2" - 24" (15-600mm) | 0.5 - 12mm | 6 - 12m |
| Welded | 1/2" - 8" (15-200mm) | 0.8 - 6mm | 6 - 12m |
| Scaffolding | 1.5" - 4" (40-100mm) | 2.0 - 4.5mm | 6m (standard) |
(Custom sizes available upon request)
Common Uses of Galvanized Steel Pipes
Galvanized steel pipes are widely used in:
1. Water Supply Systems (Galvanized Steel Pipe Water)
Potable water pipelines (zinc coating is safe for drinking water)
Irrigation & drainage systems
2. Construction & Scaffolding
Structural supports (beams, columns)
Temporary scaffolding (high strength & weather resistance)
3. Oil & Gas Industry
Low-pressure fluid transport
Protective casings for underground pipes
4. Fencing & Handrails
Durable outdoor fencing
Corrosion-resistant railings
Why Choose Shineyond Group as Your Galvanized Steel Pipe Manufacturer?
As a trusted galvanized steel pipe manufacturer, Shineyond Group offers:
✅ High-quality zinc coating (ISO-certified galvanizing process)
✅ Wide range of sizes (custom dimensions available)
✅ Competitive pricing (factory-direct supply)
✅ Global certifications (ASTM, BS, JIS, DIN)
✅ OEM & ODM services (tailored solutions for industries)
Galvanized steel pipe is a cost-effective, durable, and corrosion-resistant steel solution that can meet the needs of use in a variety of environments, whether you need standard galvanized steel pipe sizes or custom sizes, ShineWing Group can provide high-quality products with reliable performance.
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