Hot Dip Galvanized Square Steel Tube (GI Square Tube)
Hot Dip Galvanized Square Steel Tube (GI Square 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 Square Steel Tube (GI Square Tube) is a square hollow section made from carbon steel and protected by a zinc coating to improve corrosion resistance and service life. Its square profile provides convenient connections and fabrication options for structural frames, construction projects, fencing, greenhouse structures, machinery and industrial applications. Available in different steel grades, square sizes, wall thicknesses and lengths, it can be supplied to meet various structural and manufacturing requirements. Depending on the required specification, the product can be supplied as pre-galvanized square tube or square steel tube hot-dip galvanized after forming. Queen Metal offers customized dimensions, zinc coating requirements, cutting, end preparation and other processing services, helping customers coordinate steel supply and fabrication requirements through a one-stop service.
Specifications
| Item | Specification |
|---|---|
| Product Type | Hot Dip Galvanized Square Steel Tube |
| Common Name | GI Square Tube / Galvanized Square Pipe / Galvanized Square Hollow Section |
| Material Type | Galvanized Carbon Steel |
| Common Steel Grades | Q195 / Q215 / Q235 / Q355 / S235JR / S275JR / S355JR / Other grades according to applicable specifications |
| Applicable Standards | ASTM A500 / ASTM A501 / EN 10219 / EN 10210 / JIS G 3466 / GB/T 6728, depending on product type and order requirements |
| Manufacturing Process | ERW Welded / Cold-Formed Hollow Section, depending on product specification |
| Galvanizing Process | Hot-Dip Galvanized After Forming / Pre-Galvanized, depending on product specification |
| Section Shape | Square Hollow Section (SHS) |
| Side Dimensions | Various standard sizes / Customized |
| Wall Thickness | Various standard sizes / Customized |
| Length | Standard Length / Fixed Length / Customized |
| Zinc Coating | According to applicable standards or customer requirements |
| Surface Finish | Galvanized / Smooth Zinc Coating / Customized |
| Pipe Ends | Plain End / Square-Cut End / Beveled End, or other options where applicable |
| Dimensional Tolerance | According to applicable product standards or customer requirements |
| Processing Services | Cutting / Drilling / Notching / Welding / Other Customized Processing, subject to product specifications |
| Customization Options | Steel Grade / Side Dimensions / Wall Thickness / Length / Zinc Coating / End Preparation / Processing |
| Documentation | Material Test Certificate (MTC) available according to order requirements |
Need a Customized Solution?
If you cannot find a hot dip galvanized square steel tube (GI Square 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 |
|---|---|
| Construction & Steel Structures | Building frames, warehouse structures, roof supports, columns and structural frameworks |
| Infrastructure | Protective barriers, support structures, public facilities and infrastructure projects |
| Agriculture | Greenhouse frames, farm structures, agricultural equipment and fencing systems |
| Fencing & Security | Fence posts, gates, security barriers, railings and perimeter protection |
| Solar Energy | Solar panel support structures and mounting frames, subject to structural design requirements |
| Industrial Manufacturing | Machine frames, equipment supports, production line structures and fabricated components |
| Transportation | Vehicle-related structural components, equipment frames and transport facility supports |
| Furniture & Display Systems | Metal furniture frames, shelving systems, display racks and support structures |
| Commercial & Residential Projects | Canopies, awnings, handrails, partitions and decorative metal structures |
| Steel Fabrication | Customized square hollow sections, brackets, frames and project-specific fabricated components |
Quality Assurance & Testing
| Inspection / Testing | Details |
|---|---|
| Material Verification | Verification of steel grade and chemical composition according to the applicable standard |
| Dimensional Inspection | Side dimensions, wall thickness, length, squareness, straightness and dimensional tolerances |
| Zinc Coating Inspection | Verification of zinc coating thickness or coating mass according to the specified standard |
| Surface Inspection | Inspection for bare spots, peeling, excessive zinc buildup and other visible surface defects |
| Mechanical Testing | Tensile and other mechanical tests according to the applicable product standard |
| Weld Inspection | Weld seam inspection for welded square steel tubes, where applicable |
| Bend / Flattening Testing | Available where required by the applicable standard or customer specification |
| Coating Adhesion Inspection | Galvanized coating adhesion assessment according to the specified standard, where applicable |
| Appearance Inspection | Inspection of surface uniformity, coating coverage and visible defects |
| 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 square steel tube packaging |
| Surface Protection | Suitable protective wrapping to help prevent coating damage during handling and transportation |
| End Protection | End protectors available according to product dimensions and customer requirements |
| Bundling | Steel-strapped bundles for secure handling and shipment |
| Bundle Identification | Product labels and bundle markings according to order requirements |
| External Packaging | Waterproof wrapping or other suitable protective materials for export transportation |
| Wooden Packaging | Wooden pallets or cases available where required |
| Packaging Arrangement | Bundle size, stacking method and packaging configuration arranged according to product dimensions and shipping requirements |
| Shipping Method | Container / Bulk shipment, depending on product 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, coating requirements and order quantity |
| Lead Time | Confirmed according to material availability, production schedule, specifications and order quantity |
| Customized Logistics | Custom marking, bundle identification, packaging methods and shipping arrangements available according to customer requirements |
FAQS
1. What is a Hot Dip Galvanized Square Steel Tube?
A Hot Dip Galvanized Square Steel Tube is a square hollow carbon steel section protected by a zinc coating to improve corrosion resistance and service life. It is widely used in construction, structural frameworks, fencing, agricultural structures and industrial fabrication.
2. What is the difference between pre-galvanized and hot-dip galvanized square steel tubes?
Pre-galvanized square tubes are generally formed from steel that has been galvanized before tube manufacturing. Hot-dip galvanized-after-forming tubes are galvanized after the square section has been formed. The coating coverage and thickness depend on the manufacturing process and specified requirements.
3. What sizes are available for galvanized square steel tubes?
Galvanized square steel tubes are available in various side dimensions, wall thicknesses and lengths, depending on the manufacturing range and applicable standard. Customized sizes can be evaluated according to your drawings or project specifications.
4. What is the difference between galvanized square tube and galvanized rectangular tube?
A square tube has equal side dimensions, while a rectangular tube has different width and height dimensions. Both are hollow structural sections, and the appropriate profile depends on the structural design, available installation space and fabrication requirements.
5. Can Queen Metal supply customized galvanized square steel tubes?
Yes. Queen Metal can coordinate custom steel grades, side dimensions, wall thicknesses, lengths, zinc coating specifications, end preparation, processing and export packaging. Send us your drawings, required standard, dimensions and quantity so we can evaluate the specifications and prepare a 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.
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