Hot Dip Galvanized Steel Pipe
Hot dip galvanized steel pipe (GI pipe) is a steel pipe coated with a protective zinc layer through a molten zinc bath, delivering decades of corrosion resistance in demanding outdoor and industrial environments. As a professional galvanized steel pipe manufacturer and factory, MESCO supplies hot dip galvanized steel pipes for structural, construction, water transmission and agricultural applications across global markets. Whether you need standard stock sizes or custom specifications, we offer flexible MOQ, OEM services and competitive galvanized steel pipe prices per ton.
Product Specifications
| Parameter | Specification |
|---|
| Outer Diameter | 1/2" - 12" (21.3mm - 323.9mm) |
| Wall Thickness | 1.8mm - 12.0mm |
| Length | 5.8m / 6.0m / 11.8m / 12.0m, or cut to length |
| Zinc Coating | ≥ 210 g/m² (up to 550 g/m² on request) |
| Standard | ASTM A53, ASTM A795, BS 1387, EN 10255, JIS G3444 |
| Steel Grade | Q195, Q235, Q345, S235, S275, S355 |
| Surface | Hot dip galvanized, uniform zinc layer |
| End Finish | Plain end, threaded & coupled, grooved |
| MOQ | 5 tons (trial order accepted) |
| Application | Structure, scaffolding, water & gas line, greenhouse, fence |
Why Choose MESCO as Your Galvanized Steel Pipe Supplier
Factory-Direct Pricing
As a galvanized steel pipe factory, we control the full production process and offer factory-direct galvanized steel pipe prices without middleman markup.
Strict Quality Control
Every batch passes zinc coating thickness, flattening and hydrostatic tests before shipment. Mill test certificates (MTC) are provided with each order.
OEM & Customization
We support OEM branding, custom sizes, wall thicknesses and zinc coating weights, and accept trial orders with a small MOQ.
Reliable Export Service
With years of experience as a galvanized steel pipe exporter, we handle loading, packing and shipping documentation worldwide.
Applications
- Construction & structure - columns, beams, handrails and supports
- Scaffolding - high-strength, corrosion-resistant scaffolding tubes
- Water & gas transmission - threaded GI pipes for utility lines
- Agriculture - greenhouse frames and irrigation systems
- Fencing & guardrails - highway and industrial protective barriers
Packaging & Delivery
| Item | Detail |
|---|
| Packaging | In bundles with steel strips, or loose loading |
| Coating Protection | Waterproof cloth on request |
| Delivery Time | 7-15 days for stock sizes, 20-30 days for custom orders |
| Loading Port | Tianjin / Qingdao / Shanghai |
| Payment Terms | T/T, L/C |
FAQ
What is the difference between hot dip galvanized and pre-galvanized steel pipe?
Hot dip galvanizing dips the finished pipe into molten zinc, producing a thicker, more durable coating (typically 210-550 g/m²). Pre-galvanized pipe is galvanized at the strip stage before forming, giving a thinner coating. For outdoor or corrosive environments, hot dip galvanized pipe is the better choice.
Can you customize the zinc coating thickness?
Yes. Our standard coating is ≥210 g/m², and we can increase it up to 550 g/m² for high-corrosion applications such as coastal or industrial environments.
What is your MOQ for hot dip galvanized steel pipe?
Our MOQ is 5 tons for standard sizes. For the first order, we accept smaller trial quantities so you can verify quality before bulk purchasing.
Do you provide samples and test certificates?
Yes, we provide free samples and supply Mill Test Certificates (MTC), along with third-party inspection (SGS/BV) on request.
How do I get a galvanized steel pipe price per ton?
Simply send us your required size, wall thickness, zinc coating weight and quantity, and our sales team will reply with a detailed quotation within 24 hours.
