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  • Hangzhou FAMOUS Steel Engineering Company
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Phone Number : +86-180 7273 5884
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Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking with High Rigidity for Box Arch Bridges

  • Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking with High Rigidity for Box Arch Bridges
  • Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking with High Rigidity for Box Arch Bridges
  • Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking with High Rigidity for Box Arch Bridges
  • Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking with High Rigidity for Box Arch Bridges
  • Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking with High Rigidity for Box Arch Bridges
Place of Origin China
Brand Name FASEC
Certification ISO 9001; CE; AS/NZS 1397; ASTM A653; MTCs
Model Number Composite Floor Deck
Minimum Order Quantity 1000 MT
Price USD 15-20/SQM
Packaging Details Sea Freight (Container/Bulk Vessel)
Delivery Time 10-30 Days
Payment Terms L/C, D/A, D/P, T/T
Supply Ability 2,000 – 5,000 MT/month
Product Details
Product Type Heavy-Duty Galvanized Steel Bridge Deck Base Material High-tensile Steel
Surface Coating Z275 Standard; Z450 / Z600 Optional Core Function Permanent Formwork & Tensile Reinforcement
Applications Highway/municipal Bridges, Railway Viaducts, Pedestrian Overpasses, Heavy-duty Parking Garages Customization Customized To Project Load And Span Requirements
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Product Description
Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking is a premium structural decking solution tailored for box arch bridge construction. Fabricated from S350 structural steel (350 MPa minimum yield strength), it balances high mechanical strength, reliable weldability and cost efficiency for medium & heavy-load infrastructure.
 
The 4mm plate thickness guarantees excellent load capacity, while the hot-dip galvanized coating offers long-term anti-corrosion performance, perfectly fitting bridges operating under harsh weather, coastal areas and heavy traffic. Featuring high rigidity, the deck meets strict structural demands of box arch bridge systems, ensuring long service life, operational safety and reduced whole-life maintenance expenditure.
 
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Superior S350 Structural Steel – Trustworthy Structural Strength


The outstanding performance of the deck originates from S350 grade structural steel. It reaches 350 MPa minimum yield strength and tensile strength between 510–650 MPa, outperforming regular grades such as S275JR.
 
Higher strength allows lighter structural sections under equivalent load requirements, cutting raw material consumption and dead weight without sacrificing safety. The steel possesses great ductility with elongation ≥20%, offering visible overload warning before structural failure. With impact toughness ≥34 J at -20°C, it avoids brittle fracture risks and maintains stable performance under low-temperature climate conditions. The material supports standard welding processes for convenient fabrication.
 

Precision 4mm Thickness – Optimized for Heavy-Duty Operation


The 4mm thickness achieves an ideal balance between structural rigidity and self-weight. It effectively withstands heavy vehicle loads, dynamic traffic force and cyclic loading without permanent deformation.
 
Uniform thickness supports precise welding, bolted connections and seamless assembly matching box arch bridge superstructures. Whether for 20–150m span projects or highway traffic load conditions, the deck provides sufficient bending resistance and torsional stiffness for challenging bridge engineering.
 

Hot-Dip Galvanized Finish – Multi-Decade Corrosion Protection


Hot-dip galvanizing treatment delivers reliable anti-corrosion performance for severe service environments. The zinc layer acts as sacrificial protection, shielding base steel from moisture, de-icing salt and atmospheric contaminants.
 
This surface treatment largely eliminates frequent repainting work and extends deck service life (over 50 years in humid and coastal regions). It lowers recurring maintenance costs and brings stable long-term benefits for bridge owners.
 

High Rigidity Design – Optimized for Box Arch Bridge Systems


Developed specifically for box arch bridges, the high-rigidity profile ensures stable overall structure. It efficiently transfers deck loads to arch ribs with uniform force distribution and improves effective spanning capability.
 
When integrated into box arch bridge systems, the deck enhances structural torsional stiffness and lateral stability, applicable for highway bridges, railway crossings and industrial access structures. Its rigid property suppresses deflection and vibration under traffic, creating a smooth and safe driving surface.
 

Versatile Applications for Demanding Infrastructure


  • Box Arch Bridges: Primary deck component for highway and railway box arch bridge structures
  • Highway Bridges: Heavy-load deck for short and medium-span river-crossing highway projects
  • Industrial Access Bridges: Robust decking for factory and plant traffic passage
  • Urban & Landscape Bridges: Combination of anti-corrosion property and aesthetic requirements
  • Coastal & Humid Area Bridges: Galvanized protection adapts to salt-spray corrosive surroundings
     

Why Choose Our Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking?

 
Feature Benefit
S350 Steel Grade 350 MPa yield strength for superior load capacity
4mm Thickness Balanced rigidity and weight suitable for heavy loads
Hot-Dip Galvanized Finish Over 50-year anti-corrosion performance, low maintenance
High Rigidity Profile Improved stability and vibration resistance for box arch bridges
Good Weldability Simple fabrication and convenient field installation
Low-Temperature Impact Resistance Stable performance in cold climate regions
 

Conclusion – Reliable Decking Solution for Your Bridge Project


Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking integrates high strength, structural stability and durable anti-corrosion performance for box arch bridge construction. Made of S350 high-strength steel, precision formed to 4mm thickness and protected by hot-dip galvanizing, it ensures consistent reliable performance for decades with minimal maintenance.
Ready to upgrade your bridge project with premium decking?
 
Contact our engineering team to discuss span parameters, load requirements and project schedules. We supply customized design schemes, seaworthy packaging and on-time delivery to keep your infrastructure project within schedule and budget.
Choose strength. Choose durability. Choose Heavy-Duty S350 4mm Hot Galvanized Steel Bridge Decking.

 

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