HFW Structural Welded Tube 76mm-660mm Bus Station Steel Frame Pipe

1. Product Overview

Full Product Name

HFW Structural Welded Tube 76mm-660mm Bus Station Steel Frame Pipe

Brief Introduction

This 76–660mm HFW high-frequency straight seam structural welded tube is specially developed for urban bus station, bus shelter, waiting platform and traffic station steel frame engineering. Manufactured from high-quality carbon steel coils and processed by mature high-frequency welding technology, the pipe features uniform wall thickness, stable structural performance, high straightness and excellent weld firmness. It fully meets the load-bearing, wind-resistant and anti-pressure requirements of outdoor traffic facility structures.

All structural tubes undergo online weld stress relief annealing and full non-destructive testing to ensure overall structural stability. The product supports hot-dip galvanizing, anti-rust painting and other surface treatments, effectively resisting outdoor wind, rain and ultraviolet erosion. It is widely used for bus station canopy support frames, column supports, guardrail frames, platform structural brackets and other traffic facility supporting structures, serving as the preferred standard structural steel pipe for urban public traffic infrastructure construction and renovation projects.

2. Core Product Advantages for Bus Station Structure Engineering

High Structural Stability & Strong Load-Bearing Capacity Adopting HFW integrated metallurgical welding process, the weld strength is consistent with the pipe base metal without virtual welding or crack defects. The overall pipe body has high rigidity and strong vertical and horizontal load-bearing performance, which can stably support bus station canopy, top cover and advertising board loads, avoiding structural deformation and shaking.

Excellent Outdoor Weather Resistance & Long Service Life Support overall hot-dip galvanizing and outdoor anti-corrosion painting treatment. It can resist long-term outdoor ultraviolet radiation, rainwater erosion, oxidation and rust, adapting to open-air urban traffic station environment. Effectively solve the problem of short service life and frequent maintenance of ordinary structural pipes.

High Dimensional Accuracy & Easy Integrated Installation Strict tolerance control for outer diameter, wall thickness and straightness, with regular pipe roundness and uniform stress. The size standard matches conventional bus station frame accessories, connecting plates and fasteners. It is convenient for on-site cutting, drilling, welding and assembly, greatly improving the construction efficiency of station frame projects.

Good Toughness & Wind Resistance for Urban Outdoor Environment The weld seam is treated by online annealing to eliminate welding stress, with good overall toughness and impact resistance. It can resist strong wind, hail and other weather impacts in urban outdoor environments, ensuring the long-term safe and stable operation of bus station steel frame structures.

Smooth Surface & Beautiful Architectural Effect The internal and external weld flashes are fully trimmed, with smooth and flat pipe surface without burrs and pits. After galvanizing or painting treatment, the appearance is neat and uniform, which meets the urban public facility beautification standards and is suitable for standardized and unified bus station supporting construction.

Cost-Effective & Suitable for Large-Scale Urban Projects Automated HFW continuous production reduces production cost with stable quality. Compared with seamless pipes, it has higher cost performance and sufficient batch supply capacity, fully meeting the demand for large-scale construction and unified renovation of urban bus station facilities.

3. Complete Technical Specification Table

4. Professional HFW Manufacturing Process for Traffic Structural Pipe

Raw Material Strict Screening: Select high-toughness structural steel coils with stable mechanical properties to ensure the overall load-bearing and weather resistance of the bus station frame;

Uncoiling & Precision Levelling: Eliminate coil deformation to ensure flat raw materials and lay the foundation for regular pipe forming;

Multi-Pass Gradual Roll Forming: Uniform stress forming to ensure consistent roundness and wall thickness of the pipe body, avoiding local structural stress concentration;

High-Frequency HFW Welding: Fast and precise resistance welding, narrow heat-affected zone, no brittle welding defects;

Internal & External Weld Trimming: Completely remove weld burrs to ensure smooth pipe surface, convenient for later painting and galvanizing treatment;

Weld Stress Relief Annealing: Eliminate welding residual stress, improve pipe toughness and structural stability, prevent outdoor deformation and cracking;

Precision Sizing & Straightening: Strictly calibrate pipe straightness and dimensional tolerance to meet municipal structural installation standards;

Full NDT Non-Destructive Testing: 100% eddy current and ultrasonic inspection to ensure no hidden weld defects;

Mechanical Performance Sampling Test: Verify bending, compression and impact resistance to ensure structural safety;

Fixed-Length Cutting & Finishing: Accurate cutting, pipe end deburring and finishing for on-site assembly;

Custom Surface Anti-Corrosion Treatment: Galvanizing or paint spraying according to urban facility design requirements;

Final Inspection & Warehousing: Recheck appearance, size and performance to ensure qualified delivery of structural pipes.

5. Strict Structural Engineering Grade Inspection Items

All batches of bus station structural steel pipes are inspected in accordance with municipal public facility engineering standards, with complete factory test reports, supporting third-party inspection and project acceptance:

Raw material chemical composition and mechanical property detection to ensure structural steel toughness and stability;

Tensile, yield and elongation tests to verify pipe load-bearing capacity;

Weld bending and flattening tests to ensure weld integrity under external force;

Full-length non-destructive weld flaw detection to eliminate structural safety hazards;

Precision dimensional inspection to ensure matching accuracy of frame assembly;

Surface quality inspection to ensure no defects affecting anti-corrosion and appearance;

Anti-corrosion layer performance test (after customization) to ensure outdoor weather resistance.

6. Main Application Scenarios

This HFW structural welded tube is widely used in urban bus station and traffic public facility structural engineering:

Bus Station Canopy Frame: Main load-bearing column, top beam and auxiliary support pipe of bus waiting canopy;

Platform Guardrail & Isolation Frame: Steel pipe support for station platform safety guardrail and traffic isolation facility;

Station Sign & Billboard Bracket: Structural support pipe for bus stop sign, display screen and advertising board;

Urban Public Traffic Facility Renovation: Structural pipe supporting for old bus station upgrading and reconstruction;

Large-Scale Bus Terminal Frame: Spacious canopy main structure and auxiliary support pipe of bus terminal station;

Outdoor Traffic Shelter Structure: Temporary and permanent traffic waiting shelter steel frame engineering.

7. Packing & Delivery

Small & Medium Diameter Pipes: Bundled with high-strength steel belts, equipped with plastic end caps, wrapped with waterproof paper, neat and firm, suitable for container transportation;

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