High-Strength Square Tubes for Prefab Buildings & Warehouses: ASTM/EN Certified

Core Benefits

• Superior Load Capacity
  Demonstrates twice the torsional rigidity of I-beams and supports at least 30% greater loads than H-profiles of equivalent dimensions.

• Enhanced Durability
  Continuous seam welding prevents interior corrosion, while a multi-layer protective coating ensures a service life exceeding five decades.

• Simplified Installation
  Prefabricated modular components allow rapid bolted assembly and are designed for efficient installation in confined spaces common in complex infrastructure.

Primary Applications

• Main bridge girders and load-bearing trusses

• Structural framing for skyscrapers and multi-story towers

• Industrial roofing systems and long-span warehouses

• Heavy-duty equipment platforms in energy and utility facilities

Technical Specifications

• Base Material: High-strength low-alloy steel (ASTM A572 Grade 50 / EN 10025 S355)

• Surface Treatment: Hot-dip galvanizing or industrial-grade painting compliant with ISO 12944

• Quality Assurance: Factory Production Control certified to EN 1090-2 Class 4 requirements

• Customization: Prefabricated penetrations and service openings available for utility routing

OEM service available. 

A dedicated team of fast response;

EN1090 & AISC & CWB & JIS Certificated Quality;

Full production line for customized products;

Close to Sea port, Convenient for visit and delivery;

150000M2 Manufacturing Area capable to take large volume