Hot Dip Galvanized Octagonal Steel Tube (GI Octagonal Tube)
Hot Dip Galvanized Octagonal Steel Tube (GI Octagonal Tube)
Note: MOQ, pricing, lead time and payment terms may vary depending on product grade, specifications, order quantity and processing requirements. Please contact QueenMetal (ding@queenmetalgroup.com) for a product-specific quotation.
Product Introduction
Hot Dip Galvanized Octagonal Steel Tube (GI Octagonal Tube) is an octagonal-shaped steel tube with a protective zinc coating designed to improve corrosion resistance and service life in outdoor and industrial environments. Its multi-sided profile provides a practical structural solution for lighting poles, traffic sign supports, road infrastructure, fencing systems and customized steel structures. Manufactured according to project requirements, octagonal steel tubes can be supplied in different steel grades, across a range of dimensions, wall thicknesses and lengths. Depending on the design and manufacturing process, the product can be supplied as hot-dip galvanized after fabrication or with another specified galvanizing treatment. Queen Metal supports custom dimensions, material specifications, zinc coating requirements, cutting, drilling and other processing services for project-based steel supply.
Specifications
| Item | Specification |
|---|---|
| Product Type | Hot Dip Galvanized Octagonal Steel Tube |
| Common Name | GI Octagonal Tube / Galvanized Octagonal Pipe / Octagonal Steel Hollow Section |
| Material Type | Galvanized Carbon Steel |
| Common Steel Grades | Q235 / Q355 / S235JR / S275JR / S355JR / Other grades according to applicable specifications |
| Applicable Standards | Applicable structural steel, hollow section and galvanizing standards according to product design and customer requirements |
| Manufacturing Process | Welded Steel Tube / Formed Octagonal Section, depending on product design |
| Galvanizing Process | Hot-Dip Galvanized / Other Specified Galvanizing Treatment, depending on product specification |
| Section Shape | Octagonal Hollow Section (Eight-Sided Profile) |
| Across-Flats Dimension | Customized according to drawings and project requirements |
| Across-Corners Dimension | According to design and manufacturing specifications |
| Wall Thickness | Various available specifications / Customized |
| Length | Standard Length / Fixed Length / Customized |
| Steel Grade | Selected according to structural design and customer requirements |
| Zinc Coating | According to applicable standards or customer requirements |
| Surface Finish | Galvanized / Smooth Zinc Coating / Customized |
| Tube Ends | Plain End / Cut End / Drilled End / Other configurations where applicable |
| Dimensional Tolerance | According to agreed product specifications and applicable standards |
| Processing Services | Cutting / Drilling / Punching / Welding / Other Customized Processing, where applicable |
| Customization Options | Steel Grade / Octagonal Dimensions / Wall Thickness / Length / Zinc Coating / Hole Positions / End Preparation |
| Documentation | Material Test Certificate (MTC) available according to order requirements |
Need a Customized Solution?
If you cannot find a hot dip galvanized octagonal steel tube (GI Octagonal Tube) for your project, please contact Queen Metal. We provide customized solutions based on your required grade, dimensions, standard, surface finish, end treatment, and application.
Send us your specifications, technical requirements, drawings, or parameter files, and our team will provide a suitable quotation and supply solution.
Email: ding@queenmetal.com
Applications & Industries
| Industry | Typical Applications |
|---|---|
| Street Lighting | Street light poles, outdoor lighting supports and lighting column structures |
| Traffic & Road Infrastructure | Traffic sign supports, road signage structures and highway infrastructure |
| Solar Energy | Solar lighting poles and customized support structures, subject to engineering requirements |
| Public Infrastructure | Public facility supports, outdoor structural columns and infrastructure projects |
| Fencing & Security | Fence posts, security barriers and customized perimeter support structures |
| Telecommunications | Selected pole and support structures where the tube design meets project requirements |
| Industrial Manufacturing | Equipment supports, structural frames and customized fabricated components |
| Transportation Facilities | Roadside support structures, parking facility poles and transport infrastructure |
| Construction & Engineering | Customized structural supports and steel framework components |
| Steel Fabrication | Drawing-based octagonal steel tubes, cut-to-length components and project-specific fabricated products |
Quality Assurance & Testing
| Inspection / Testing | Details |
|---|---|
| Material Verification | Verification of steel grade and chemical composition according to the applicable material specification |
| Dimensional Inspection | Across-flats dimensions, across-corners dimensions, wall thickness and length inspection |
| Shape Inspection | Verification of octagonal profile geometry, straightness and dimensional consistency |
| Weld Inspection | Weld seam inspection according to the product design and applicable requirements |
| Zinc Coating Inspection | Verification of zinc coating thickness or coating mass according to the specified galvanizing standard |
| Surface Inspection | Inspection for bare spots, peeling, excessive zinc buildup and other visible defects |
| Mechanical Testing | Tensile and other mechanical tests according to the applicable material or product standard |
| Coating Adhesion Inspection | Assessment according to the specified standard, where applicable |
| Hole Position Inspection | Verification of drilled or punched hole positions and dimensions, where specified |
| Length & Cutting Inspection | Verification of cut length and end condition against the purchase specifications |
| Material Test Certificate | MTC available according to order requirements, subject to the agreed documentation scope |
| Traceability | Heat number, batch identification and product marking according to order requirements |
| Third-Party Inspection | SGS / BV or other third-party inspection available upon request |
Packaging & Logistics
| Item | Details |
|---|---|
| Packaging Standard | Export-standard galvanized octagonal steel tube packaging |
| Surface Protection | Suitable protective wrapping to help prevent coating damage during handling and transportation |
| End Protection | End protection available according to tube dimensions and customer requirements |
| Bundling | Steel-strapped bundles arranged for secure handling and shipment |
| Bundle Identification | Product labels, dimensions, grade and order markings according to customer requirements |
| External Packaging | Waterproof wrapping or other suitable protective materials where required |
| Wooden Packaging | Wooden pallets or cases available according to product dimensions and shipping requirements |
| Long-Length Packaging | Customized bundle arrangement for long-length tubes and pole components |
| Shipping Method | Container / Bulk shipment, depending on tube length, dimensions and order volume |
| Transportation Protection | Suitable protection for long-distance ocean transportation, helping reduce moisture exposure, abrasion and handling damage |
| MOQ | According to steel grade, dimensions, galvanizing requirements and order quantity |
| Lead Time | Confirmed according to material availability, manufacturing process, specifications and order quantity |
| Customized Logistics | Custom marking, bundling, packaging and shipping arrangements available according to customer requirements |
FAQS
1. What is a Hot Dip Galvanized Octagonal Steel Tube?
A Hot Dip Galvanized Octagonal Steel Tube is a steel tube with an eight-sided cross-section and a protective zinc coating. It is commonly used in outdoor structural applications such as lighting poles, traffic sign supports and customized infrastructure components.
2. What are galvanized octagonal steel tubes used for?
They are commonly used for street lighting poles, traffic signage, road infrastructure, outdoor supports and customized steel structures. The final application depends on the tube dimensions, material grade, structural design and applicable engineering requirements.
3. Can octagonal steel tubes be customized according to drawings?
Yes. Across-flats dimensions, wall thickness, length, steel grade, hole positions and end configurations can be specified according to project drawings, subject to manufacturing feasibility.
4. What is the benefit of hot-dip galvanizing octagonal steel tubes?
Hot-dip galvanizing provides a protective zinc coating that helps improve corrosion resistance in outdoor environments. The appropriate coating specification depends on the intended service conditions and applicable project requirements.
5. Can Queen Metal provide inspection and export packaging for galvanized octagonal tubes?
Yes. Queen Metal can coordinate material documentation, dimensional inspection, zinc coating inspection, third-party inspection and export packaging according to the agreed order requirements. Customers can provide drawings, technical specifications and order quantities for evaluation and quotation.




Request a Quote Now
Tell us your requirements, including product type, specifications and quantity. Our professional team will provide a fast response and customized steel solutions.
- Choosing a selection results in a full page refresh.
- Opens in a new window.