Steel Box-Section Structural Members used for Commercial Building

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1. Basic Design‌
   Shape‌: Hollow rectangular/square tubes made by welding 4 steel plates
   Sizes‌: 200mm–2000mm width/height, 6–40mm wall thickness
   Key Feature‌: High strength against twisting and bending

   ‌Main Advantages‌
    ‌Stronger‌

   • 2x better at handling twisting forces vs I-beams
   • Carries 30% more weight than same-size H-beams

    ‌Long-Lasting‌

   • Full welding protects inside from rust
   • Special coatings (3-layer system) for 50+ year use

    ‌Easy to Build‌

   • Pre-made sections connect quickly with bolts
   • Fits tight spaces in bridges & tall buildings

   ‌Common Uses‌
    Bridge support beams
    High-rise building frames
    Factory roof structures
    Power plant equipment platforms

   ‌Technical Specs‌
    Material: ASTM A572 Gr.50 steel (or EN 10025 S355)
    Surface: Hot-dip galvanized or painted (ISO 12944)
    Testing: Passes EN 1090-2 Class 4 quality checks
    Custom: Can add holes/openings for pipes/wires

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