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Pre-Galvanized Steel Pipe (ERW) – High-Precision Construction & Greenhouse Tube
Our pre-galvanized steel pipes are manufactured using high-quality ERW (Electronic Resistance Welded) and EFW (Electronic Fusion Welded) techniques. Adhering to international standards like JIS3444 and BS 4568, these pipes provide a perfect balance of cost-efficiency and corrosion resistance. With a zinc coating range of 40g/m² to 270g/m² (6μm-35μm), they are the preferred choice for greenhouse frameworks, fencing, and door structures. Every pipe is processed with precision burr-free ends and undergoes rigorous hydraulic testing to ensure structural integrity.
Technical Specifications
| Technical Category | Details & Specifications |
| Outer Diameter (OD) | 1/4” – 6” (13.7mm – 165mm) |
| Wall Thickness | 0.6mm – 3mm |
| Zinc Coating Weight | 40g/m² – 270g/m² (6μm – 35μm) |
| Steel Material | Q195, Q235, Q345 |
| Standards | JIS3444, BS 4568, EN10219, BS1139 |
| Welding Technique | Electronic Resistance Welded (ERW), EFW |
| Length Range | 1m – 7.2m (Customized) |
| End Treatment | Plain (Burr-free), Beveled, Threaded (with Coupling/Cap), Chamfer, Groove, Screw |
| Inspection Methods | Hydraulic Testing, Eddy Current, Infrared Test |
| Section Shape | Round |
Key Performance Advantages
Product Applications
Greenhouse Infrastructure: High-strength and rust-resistant frames for modern agriculture.
Fence & Door Production: Durable pre-galvanized door pipes and fencing components.
Light Construction: Structural support and conduit pipes (BS 4568) for building projects.
Scaffolding & Shoring: Supporting frameworks and temporary structural towers.
Packaging & Delivery
Frequently Asked Questions (FAQ)
Q: What is the maximum zinc weight you can provide for pre-galvanized pipes?
A: We can offer pre-galvanized pipes with a zinc weight ranging from 40g up to 270g/m² (approx. 35μm) to suit your specific anti-corrosion requirements.
Q: How do you ensure the welding quality of your ERW pipes?
A: Every pipe undergoes 100% In-line inspection, including Eddy Current and Hydraulic testing, to ensure the weld seam is as strong as the parent material.
Q: Can you provide threaded ends with couplings for electrical conduits?
A: Yes. According to the BS 4568 standard, we provide precision threading with high-quality couplings and protective caps.
Q: Do your pipes have burrs at the ends?
A: No. We utilize specialized machines to remove internal and external burrs during production, providing a clean, “Plain End” finish.
Q: What is the lead time for a standard order?
A: For common specifications, our delivery time is normally 18-20 days after the T/T or L/C is confirmed.
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