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Help CenterPre Galvanized Steel Pipe 1/2-4 Inch 0.8mm-2.0mm Thickness Z80-Z180 Zinc Coating For Telescopic
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Hemaokang Steel (Shandong) Co., Ltd. is a professional manufacturer and exporter of high-quality pre-galvanized steel pipes, established in 2025 with an annual export value exceeding US$50 million. Our Pre Galvanized Steel Pipe 1/2-4 Inch 0.8mm-2.0mm Thickness Z80-Z180 Zinc Coating For Telescopic is specifically engineered to meet the demanding requirements of telescopic applications, offering superior corrosion resistance, dimensional accuracy, and structural integrity. Each pipe is produced under strict ISO9001 quality management systems, ensuring consistent performance for global clients across North America, Europe, Asia, and Africa.
This product is designed to provide reliable strength and flexibility for telescopic poles, greenhouse frames, fencing, and lightweight scaffolding. The pre-galvanized surface ensures excellent adhesion for subsequent painting or powder coating, while the Z80-Z180 zinc coating delivers robust protection against rust and environmental wear. With a wide range of diameters (1/2 to 4 inches) and wall thicknesses (0.8mm to 2.0mm), our pipes can be customized to suit your specific project needs.
- Superior Zinc Coating: Z80 to Z180 g/m² ensures optimal corrosion resistance in outdoor and industrial environments.
- Precise Dimensions: Outer diameter tolerance ±0.5mm, wall thickness tolerance ±0.05mm, ensuring smooth telescoping fit.
- High Strength: Made from Q195/Q235 steel, yielding tensile strength ≥ 315 MPa for reliable structural support.
- Versatile Applications: Ideal for telescopic poles, greenhouse supports, fence posts, and temporary structures.
- Customizable Lengths: Standard 6m, or cut to your required length (as short as 0.5m) with plain, beveled, or threaded ends.
- Easy Fabrication: Can be welded, drilled, bent, and painted without compromising the zinc layer.
| Parameter | Specification |
|---|---|
| Outer Diameter | 1/2" (21.3mm) to 4" (114.3mm) |
| Wall Thickness | 0.8mm - 2.0mm (0.031" - 0.079") |
| Zinc Coating | Z80 - Z180 g/m² (single side) |
| Standard Length | 6m (19.7ft) or custom |
| Material Grade | Q195, Q235 (or equivalent) |
| Surface Treatment | Pre-galvanized (hot-dip) |
| Pipe End | Plain, beveled, threaded (optional) |
The pre-galvanized process ensures a uniform zinc layer that adheres tightly to the steel substrate, preventing peeling and flaking even under bending or forming. Our pipes undergo rigorous hydrostatic testing and dimensional inspection to guarantee leak-proof performance and consistent roundness. For telescopic applications, the smooth surface and precise tolerances allow sections to slide easily with minimal friction, reducing assembly time and labor costs.
Compared to traditional hot-dip galvanized pipes, our pre-galvanized pipes offer a cleaner, more uniform finish that is ideal for visible applications such as outdoor furniture, display stands, and architectural elements. The zinc coating can be tailored to your specific corrosion resistance requirements, with Z120 being the most common choice for moderate environments, while Z180 is recommended for coastal or high-humidity areas.
Hemaokang Steel (Shandong) Co., Ltd. has been serving global clients since 2025, with a team of 51-100 experienced professionals and an annual export value of US$50-100 million. Our ISO9001-certified production facilities ensure every batch meets international standards. We have successfully supplied pipes to projects in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe. Our commitment to quality, competitive pricing, and on-time delivery has earned us long-term partnerships with distributors and manufacturers worldwide.
We offer flexible packaging options including bundles, crates, or waterproof wrapping, and can arrange door-to-door logistics for bulk orders. Minimum order quantity is 1 ton, with samples available for evaluation. Contact our sales team today to discuss your specific requirements and receive a tailored quotation – we are confident that our pre-galvanized steel pipes will exceed your expectations in performance and value.
Frequently Asked Questions
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Q1: What is the difference between pre-galvanized and hot-dip galvanized pipes?
A: Pre-galvanized pipes are coated with zinc before forming, resulting in a smoother, more uniform finish. Hot-dip galvanized pipes are dipped after forming, which can create a thicker, rougher coating. Our pre-galvanized pipes are ideal for telescopic applications where surface smoothness is critical. -
Q2: Can these pipes be used for telescopic flagpoles or camera monopods?
A: Yes, the precise dimensions and smooth surface make them suitable for telescopic poles. The zinc coating provides corrosion resistance even in outdoor use. We recommend Z120 or higher for outdoor applications. -
Q3: Do you offer cutting to specific lengths?
A: Yes, we can cut pipes to any length between 0.5m and 6m with plain ends. Custom lengths may have a small lead time but are fully supported. -
Q4: What is the minimum order quantity?
A: Our MOQ is 1 ton per size. For trial orders, we can offer smaller quantities with a higher unit price. Please contact us for details. -
Q5: Are these pipes suitable for welding or threading?
A: Yes, the pre-galvanized coating can be welded (with proper ventilation) and threaded. However, for threaded connections, we recommend using galvanized fittings to maintain corrosion protection. -
Q6: How do you pack the pipes to prevent damage during shipping?
A: We use steel strapping, waterproof wrapping, and wooden crates for large diameters. Each bundle is labeled with dimensions and grade. We also offer custom packaging per your request. -
Q7: Do you have certificates of quality for each batch?
A: Yes, we provide mill test certificates with chemical composition and mechanical properties. Our ISO9001 system ensures traceability and quality assurance. -
Q8: What is the lead time for a 20-foot container?
A: Typically 15-25 days after order confirmation, depending on the quantity and customization. We prioritize urgent orders with our efficient production schedule.
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