Q195-Q345 Galvanized Steel Square Tube

Q195-Q345 Galvanized Steel Square Tube

High product quality, passed ISO9001 quality management system certification and CE certification.
Strong production capacity, complete processing plant equipment, and strict quality control system.

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Galvanized Square Steel Pipe

Our galvanized square steel pipes are high-precision, high-performance structural products manufactured by hot-dip galvanizing technology. Based on high-quality steel plates, they are formed by cold bending or hot rolling and then coated with a dense, uniform zinc layer through the hot-dip galvanizing process. With excellent corrosion resistance, high structural stability, beautiful appearance and strong load-bearing capacity, our galvanized square steel pipes are widely used in construction, machinery manufacturing, decoration, municipal engineering and other fields, becoming an ideal choice for structural support and decoration projects.

Key Advantages

  • Superior Corrosion Resistance: The hot-dip galvanized zinc layer forms a tight protective film on the surface of the square pipe, which can effectively isolate the steel substrate from moisture, oxygen and corrosive substances. It has dual protection of physical barrier and sacrificial anode, ensuring stable performance in humid, salt-spray, outdoor and underground environments, and greatly extending the service life of the product.
  • Excellent Structural Stability: The square structure design has uniform stress distribution, strong bearing capacity and good bending resistance. It is not easy to deform or bend under external pressure and load, and can maintain stable structural performance in long-term use, suitable for various structural support scenarios.
  • Precise Dimensions & Beautiful Appearance: Adopting advanced forming and processing technology, the pipe has precise dimensions, uniform wall thickness and smooth surface. The galvanized layer is bright and uniform, with no obvious defects, which not only meets the functional requirements but also has good decorative performance, reducing the subsequent painting process.
  • Easy Processing & Installation: It can be easily cut, drilled, welded, bent and assembled according to actual needs. The standardized specifications and smooth surface make the installation process simple and efficient, saving construction time and labor costs.
  • Cost-Effective & Versatile: The product has a long service life, low maintenance cost and recyclable performance, conforming to global environmental protection standards. It is widely used in various fields such as construction, decoration and machinery, with high cost performance and strong applicability.

Typical Applications

Our galvanized square steel pipes are widely used in various industries, covering structural support, decoration and engineering fields, including but not limited to:
  • Construction Industry: Building frames, curtain wall supports, scaffolding, handrails, door and window frames, roof trusses
  • Decoration Field: Indoor and outdoor decoration frames, advertising billboards, display racks, partition frames
  • Municipal Engineering: Street lamp poles, traffic signs, guardrails, municipal greening frames, public facility supports
  • Machinery Manufacturing: Mechanical equipment frames, workshop brackets, conveyor supports, agricultural machinery parts
  • Other Fields: Greenhouse frames, fence columns, storage shelves, container supports

Product Specification

Item
Standard Specification
Product Name
Hot-Dip Galvanized Square Steel Pipe
Executive Standard
GB/T 3091, EN 10219, ASTM A500, JIS G3466
Material Grade
Q195, Q215, Q235A, Q235B, Q355
Production Process
Hot-Dip Galvanizing (GI), Cold Bending / Hot Rolling
Zinc Coating Weight
Z60, Z100, Z140, Z180, Z275 (g/m², double-sided)
Side Length
20mm × 20mm – 200mm × 200mm
Wall Thickness
1.0mm – 8.0mm
Length
3m – 12m (Customizable according to requirements)
Surface Finish
Hot-Dip Galvanized, Bright & Smooth Surface, No Defects
Mechanical Properties
Yield Strength: ≥180MPa; Tensile Strength: ≥270MPa
Connection Method
Welded, Bolted, Flanged
Packaging
Waterproof Film + Steel Strip + Wooden Pallet (Export Standard)

Service & Support

We provide comprehensive service and support to meet your diverse needs for galvanized square steel pipes:
  • Customization: Customizable side length, wall thickness, length, zinc coating weight and surface treatment
  • Stable Supply: Sufficient inventory and advanced production equipment to ensure timely delivery and stable supply
  • Quality Assurance: Strict quality control system, providing Material Test Certificates (MTC) and full inspection reports
  • Cooperation Mode: Support wholesale, export, OEM and ODM cooperation, and provide professional technical consultation and after-sales service
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