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Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Specifications
Brand Name :
Ruly Steel
Model Number :
Ruly0044
Certification :
SGS, BV,ISO
Place of Origin :
China
MOQ :
30 Ton
Price :
USD900-USD1500 Per Ton
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
2000 Ton Per Month
Delivery Time :
30 Days
Packaging Details :
As request
Application :
Box Steel Column Beams
Type :
Structural Steel Fabricators
Raw steel material :
Q235B, Q355B, ASTM A36
Surface treatment :
Painting or Hot-dip Galvanize
Shot blasting level :
Sa 2.5
Service life :
50 Years
Process criterion :
AWS D1.1, GB
Installation :
Engineer guidance on site
Description
Box Steel Column / Welded Structural Steel Fabricators
Box Type Metal Process for structural steel fabrication with superior strength and durability.
Product Specifications
Attribute Value
Application Box Steel Column Beams
Type Structural Steel Fabricators
Raw steel material Q235B, Q355B, ASTM A36
Surface treatment Painting or Hot-dip Galvanize
Shot blasting level Sa 2.5
Service life 50 Years
Process criterion AWS D1.1, GB
Installation Engineer guidance on site
Product Overview
Welded steel box beams and columns are widely used in steel structure projects. Unlike H-shaped steel columns with only one strong axis, box columns provide superior strength in both X and Y directions, with stiffening plates at nodes creating strong node domains for better force distribution.
Fabrication Method
Box-shaped columns are welded from four steel plates using a process similar to welded H-shaped steel:
  • Precision cutting with CNC flame cutting machines
  • Carbon arc gouging for K-shaped groove cutting
  • Straightening correction after blanking
  • Assembly using specialized jigs and fixtures
  • Submerged arc welding for main body
  • Manual welding for stiffening plates
  • Electroslag pressure welding for separators
  • Final straightening and end milling
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Technical Specifications
Parameter Specification
Grade Q235B, SS400, Q345B, S235JR, S275JR, ASTM-A36
Size 100x100mm - 1500x1500mm
Thickness 8mm - 100mm
Length 2 - 20 meters
Shape Box shaped
Delivery Time 7-15 Days (stock size), 20-40 Days (customized)
Quality Control
  • Raw material thickness tolerance <0.25mm
  • In-house yield and tension strength testing
  • Third-party inspection certificates available
  • Traceable mill certificates
  • Dimension tolerance <1mm
  • 20% ultrasonic testing of welding lines
  • 20% magnetic powder testing
  • Shot blasting grade Sa 2.5
  • Paint primer application within 5 hours
  • Dry Film Thickness (DFT) >75UM
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Our Services
  • Structural steel fabrication, painting, galvanizing, pre-assembly
  • Design and installation of prefabricated steel structures
  • Fabrication drawing development from architectural plans
  • Engineering consulting services
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Project Experience
  • Light gauge prefabricated steel warehouses and workshops
  • Heavy industrial steel structures with cranes
  • Truss roof steel structures
  • Steel frame cold storage facilities
  • Prefabricated residential buildings
  • Parking structures and garages
  • Heavy industrial steel fabrication
Why Choose Us
  • Professional design team for customized solutions
  • Skilled fabrication team with advanced equipment
  • One-stop service for complete project solutions
  • Comprehensive quality control processes
  • Dedicated after-sales service and support
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Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams

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Product Detail
Brand Name :
Ruly Steel
Model Number :
Ruly0044
Certification :
SGS, BV,ISO
Place of Origin :
China
MOQ :
30 Ton
Price :
USD900-USD1500 Per Ton
Contact Supplier
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams

Qingdao Ruly Steel Engineering Co.,Ltd

Verified Supplier
1 Years
qingdao
Since 2009
Business Type :
Manufacturer, Exporter
Main Products :
Steel Structure Warehouse, Steel Structure Workshop, Steel Structure Construction
Total Annual :
15 Million -20 Million
Employee Number :
100~110
Certification Level :
Verified Supplier
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