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

Sunway is a Chinese steel fabricator established in the year 2002, providing OEM steel structure for Construction Building, Solar Tracker, Chemical Plant, Power Plant, Mining & Cement equipment.

Sunway has passed international certificates including AISC, CE, CWB, JIS, ISO. Supply full package of steel works ready for erection on site. 70% of products exported to overseas, including Europe, North America and Australia, etc.

Sunway conducts digital management of the workshop. Through Tekla, Solidworks software and MES systems, the full traceability of product cycle is realized.

Besides the Automatic Intelligent Production Line for H beam & Box Column, the factory is well equipped with Laser Cutting Machine, Robot Welding Machine, Sawing Machine, Drilling Machine, Hydraulic Press Machine, Punching Machine, Shot-blasting machine and independent Painting workshop. 

The typical products are Built-up H section, Steel Frame, Steel Truss, Solar tracker bracket, and Pipe Racking Structures.

Why choose Sunway?

OEM & Detailing 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;

100,000M2 Manufacturing Area capable to take large volume;

Built on strength, passion and a steady pulse, we’re creating tomorrow ’s Building today. We are Sunway Steel, and we’re fabricating the Future.