As the direct manufacturer, HAISHENG maintains large, year-round inventories of standard square tube profiles. This eliminates the need for complex fabrication or welding; the materials are ready for immediate cutting, drilling, and base-plate welding upon arrival. With streamlined production steps and high-efficiency batch manufacturing powered by fully automated equipment, we ensure rapid turnaround times.
We also supply a complete range of standardized steel structure connectors, saving customers the hassle of sourcing additional parts. Whether for new factory buildings, warehouses, and carports, or urgent renovation projects, we guarantee quick scheduling and on-time delivery, ensuring zero delays to your site progress.
| Size (mm) | Wall Thickness (mm) | Material | Weight (kg/m) | Recommended Application |
|---|---|---|---|---|
| 100×100 | 3.0 | Q235B | 9.15 | Carports, small storefronts |
| 150×150 | 4.0 | Q235B | 18.30 | Light-duty factory buildings |
| 200×200 | 5.0 | Q355B | 30.70 | Standard factory buildings, warehouses |
| 250×250 | 6.0 | Q355B | 46.20 | Multi-storey mezzanines, heavy loads |
| 300×300 | 8.0 | Q355B | 73.80 | Heavy-duty platforms, long-span structures |
Unlike traditional open-profile steel columns, these square steel tube structural columns feature a fully enclosed hollow cross-section. This design ensures symmetrical, uniform load distribution and stable mechanical performance, making them suitable for a wide range of complex loading conditions.
1. Balanced Bi-axial Rigidity: They offer excellent torsional and lateral resistance, effectively withstanding lateral wind pressure and sustained vertical loads. This prevents issues such as tilting, deformation, or swaying caused by long-term stress, ensuring structural stability far superior to standard steel columns.
2. High-Precision Assembly: Designed for use with specialized steel connectors, they ensure tight joints and secure connections. They reliably bear vertical compression and lateral shear forces, comprehensively enhancing the building's overall structural integrity.
3. Versatile Application: Suitable for low-rise factories, outdoor canopies, curtain wall mullions, light-gauge steel villas, and more. They maintain structural stability even when subjected to prolonged exposure to the elements and dynamic loads, solidifying the building's safety foundation.
These columns overcome the drawbacks of traditional load-bearing steel columns—which are often bulky and space-consuming—by achieving a lightweight cross-section without compromising load-bearing capacity.
1. Space-Efficient Design: Streamlined cross-sectional dimensions minimize the building footprint and maximize usable interior space. This facilitates equipment placement, personnel movement, and spatial planning, significantly improving the building's utility.
2. Sleek Aesthetics: Featuring smooth, clean surfaces and simple, regular lines without protruding elements, the assembled structure looks refined and uncluttered, avoiding the visual bulkiness associated with traditional steel columns.
3. Ideal for High-Demand Projects: Suitable for exhibition halls, light-gauge steel villas, sports venues, transport hubs, and outdoor public facilities where both structural strength and aesthetic appeal are critical.
1. Streamlined Processing: Eliminates the need for complex secondary forming. Precision finishing processes—such as cutting, drilling, and base plate welding—can be performed immediately upon delivery, drastically shortening the initial processing cycle.
2. Efficient Batch Production: Automated manufacturing streamlines workflows and boosts output efficiency, ensuring reliable delivery for large-scale orders. This makes them the perfect choice for new factories, warehouses, and carports, as well as urgent renovation projects for existing structures.
3. One-stop supply of a complete range of standardized steel structural connectors eliminates the need for multi-vendor sourcing and component matching, thereby simplifying the procurement process and saving time and costs.
The entire range of square steel tube structural columns is manufactured in strict accordance with national standards, utilizing two premium steel grades: Q235 and Q355.
1. Clear Material Classification: Q235 steel is ideal for standard light-load civil and municipal projects, offering excellent cost-effectiveness; Q355 high-strength steel is suited for heavy-duty industrial plants, long-span supports, and high-load equipment bases.
2. Strict Dimensional Precision: Component straightness is strictly controlled (deviation ≤2mm), and surfaces are smooth, flat, and free of burrs or deformation, meeting the requirements for high-precision assembly.
3. Versatile Processing: Supports standard smooth paint finishes and can be customized with anti-corrosion and fire-resistant treatments, ensuring durability in both standard indoor settings and demanding outdoor environments.
1. Supports precision processing such as hole punching, stiffener plate welding, base plate assembly, and custom connection lugs; compatible with various connection designs and highly adaptable for on-site assembly.
2. Comprehensive Application Range: Suitable for diverse projects including industrial plant frameworks, machinery supports, bridge auxiliary structures, glass curtain walls, landscape columns, and multi-story residential steel structures.
3. Meets Support Needs for Complex Structures: Capable of accommodating long-span and irregular structural requirements; precision customization resolves issues regarding component fit and load-bearing capacity in specialized operating conditions.
1. Extensive Global Reach: Operations cover Southeast Asia, Central Asia, Europe, South America, and Oceania; backed by rich experience in cross-border project execution and compliance with regional construction standards.
2. Comprehensive Documentation & Support: Provides detailed drawings, structural load verification, transparent pricing, and full material certification/inspection documentation; standardized processes facilitate smooth customs clearance and project acceptance overseas.
3. Dedicated Professional Team: End-to-end support—from initial design coordination and mid-stage production quality control to post-delivery technical consultation—fully addressing overseas clients' procurement and construction concerns.
HAISHENG is a professional steel structure enterprise integrating R&D, design, sales, and after-sales service. Operating on a direct-from-factory model, we provide highly reliable square steel tube structural columns that offer exceptional value.
1. Extensive in-stock inventory covering a full range of specifications allows us to precisely meet the load, dimensional, and technical requirements of diverse projects; with no need to wait for production scheduling, we offer superior supply flexibility.
2. Backed by years of industry experience and a mature quality control system, we ensure consistent product quality and standardized transaction processes, effectively eliminating issues such as substandard materials or dimensional deviations.
3. Our comprehensive after-sales system provides end-to-end technical support and quality assurance, addressing all client needs regarding subsequent construction, maintenance, and modifications for a worry-free procurement experience.
The two main types are Q235B and Q355B.
Q235B: Suitable for standard lightweight sheds, warehouses, and canopies; offers lower costs.
Q355B: Suitable for projects with heavier loads, multi-level mezzanines, or coastal locations; offers higher strength and superior resistance to deformation.
Thicker is not necessarily better; the thickness should be matched to the building height, load requirements, and wind load. Smaller tubes (100×100/150×150) are typically used for carports and small storefronts; medium sizes (200×200, 250×250) are common for standard light-steel factory buildings; and larger or thicker square tubes (300×300+) are used for multi-level platforms. Our engineers can provide free calculations and recommendations based on your drawings to ensure the right thickness, avoiding both material waste and insufficient load-bearing capacity.
Yes, a full set of documentation is provided, including raw material certificates, dimensional inspection records, and weld inspection reports. For export orders, we can also supply a complete set of customs clearance documents, such as packing lists and certificates of origin.
Painted finish: Inspect the paintwork every 5 years; touch up any areas where the paint is peeling or flaking. Hot-dip galvanized finish: No major refurbishment is needed within 15 years in normal environments; minor wear can be easily repaired.
Address
Tianjin International Metal Logistics Park, Jinan Economic Development Zone (East Zone), Jinan District, Tianjin, China
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