Galvanized pipe

Ruixiang Steel specializes in Hot Dipped Galvanized Steel Pipes and Pre-galvanized Steel Tubes. Our GI pipes are engineered for superior corrosion resistance, featuring a high-purity zinc coating (up to Z275) and precision-welded joints. As a trusted GI pipe supplier, we serve global infrastructure, agriculture, and plumbing projects with ISO-certified quality.

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High-Quality Galvanized Steel Pipe (GI Pipe) Manufacturer

Name: Galvanized Steel Pipe (GI Pipe)
Brand: Ruixiang Steel
Availability: InStock
Rating: 4.9 (112 reviews)

Ruixiang Steel specializes in Hot Dipped Galvanized Steel Pipes and Pre-galvanized Steel Tubes. Engineered for superior longevity, our pipes feature a high-purity zinc coating up to 500g/m². As a global GI pipe supplier, we support infrastructure, plumbing, and structural projects with precision-welded, ISO-certified solutions.

Technical Specifications & Capabilities

Category	Specifications
Outer Diameter	15mm – 500mm (1/2" – 20")
Wall Thickness	0.5mm – 20mm (SCH10, SCH40, SCH80)
Zinc Coating	HDG: 200–500g/m² \| Pre-galv: 40–120g/m²
End Processing	Plain, Beveled, Threaded & Coupled, Grooved
Steel Grades	Q195, Q235, Q345, ASTM A53 Gr.B, S235JR

Ruixiang Galvanized Steel Pipe Inventory

ISO 9001:2015 Certified GI Pipe Stock

Why Ruixiang GI Pipes?

Extreme Rust Protection

Our hot-dipped process ensures a zinc thickness that withstands acidic soils and outdoor exposure for 25+ years.

Precision Fabrication

Advanced threading and grooving machines ensure perfect compatibility with your existing valves and fittings.

Fluid Dynamics

Smooth inner walls reduce friction and scale build-up, optimizing flow for water and gas transport.

GI Pipe Frequently Asked Questions

Q: Which is better: Hot-Dipped or Pre-galvanized?

A: It depends on the environment. Hot-Dipped (HDG) is superior for outdoor, underground, or high-moisture use due to its thick zinc layer. Pre-galvanized is more cost-effective for indoor framing, furniture, or scaffolding where a smooth finish is prioritized.

Q: Can you provide customized lengths and end-finishing?

A: Yes. We offer precision cutting to any length (up to 12m), as well as threading (BSPT/NPT), coupling, and grooving according to your project's technical drawings.

Galvanized Coil

Galvanized steel coil and GI steel coil refer to the same product, which is cold rolled steel sheet coated with zinc. It is also known as galvanized iron or GI. Galvanized steel coil is produced by passing cold rolled steel sheet through a molten zinc bath.