Product Overview
Our hot-dip galvanized SHS rectangular hollow sections are engineered for long-life exposed structural applications, manufactured to ASTM A106, ASTM A53 and BS specifications. Unlike generic galvanized hollow tubes, our SHS adopts controlled ERW welding + high-temperature hot-dip galvanizing, delivering consistent zinc coating adhesion and uniform wall thickness tolerance. The material resists salt spray, humidity and thermal cycling, making it a preferred structural profile for greenhouse skeleton framing and outdoor welded steel beam projects across global agricultural and civil construction markets.
Core Engineering Benefits
✅ Standardized Material Traceability for Global Tenders Melted and tested in accordance with ASTM A106/A53 & BS norms. Every batch comes with traceable MTC and SGS inspection reports. Mechanical properties are stable to meet overseas project audit, import customs inspection and bidding documentation requirements, eliminating material qualification risks for your international projects.
✅ Heavy-Duty HDG Coating, Anti Salt-Fog & Long Outdoor Lifespan True hot-dip galvanizing (not electro-galvanized). The metallurgically bonded zinc layer integrates with steel substrate instead of simple surface coating. It withstands coastal salt mist, tropical high humidity, seasonal freeze-thaw and UV exposure. For greenhouse frameworks staying outdoors year-round, it minimizes re-painting and routine maintenance work over decades.
✅ Optimized Hollow Section: High Rigidity with Lower Dead Load Rectangular hollow geometry achieves excellent stiffness-to-weight ratio. Resists bending, deflection and creep under wind and snow loads - critical performance for greenhouse frames which constantly face variable weather loads. Less self-weight reduces foundation cost while retaining structural safety margin.
✅ Controlled Weld Quality, Friendly for On-site Fabrication Weld seam is fully flattened with minimal internal stress. The pipe can be cut, drilled, bent and welded on-site. We optimize galvanizing process to reduce zinc flaking during welding, saving your site repair work and accelerating project assembly.
✅ Project-Based Customization We don't only supply standard 6m /12m stock lengths. We tailor wall thickness, outer dimensions and zinc coating thickness to your greenhouse or steel structure design drawings. Small trial consignments and full container loads are both available.
Typical Applications
● Commercial agricultural greenhouse main frames & secondary bracing.
● Outdoor structural steel beams and support framing.
● Coastal and high-humidity structural projects.
● Mechanical equipment chassis, warehouse racking structures.
● Fencing, site framework and welded civil steelworks.
Why Partner With Us
We focus on structural hollow sections for agricultural greenhouse and outdoor steel projects, not a general all-type steel trader.
We maintain stable raw material sourcing and strict inline inspection before galvanizing. Seaworthy bundled packaging protects goods during long ocean transit.
Our team handles export documentation efficiently, supporting your project timeline and long-term repeat supply.
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