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Qingdao Ruly Steel Engineering Co.,Ltd

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China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams

  1. China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
  2. China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
  3. China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
  4. China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
  5. China Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams

Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams

  1. MOQ: 30 Ton
  2. Price: USD900-USD1500 Per Ton
  3. Get Latest Price
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
Brand Name Ruly Steel
Model Number Ruly0044
Certification SGS, BV,ISO
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

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
Brand Name Ruly Steel Model Number Ruly0044
Certification SGS, BV,ISO Place of Origin China
High Light custom metal fabricationportal frame buildings
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 fabrication process
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
Quality control inspection of steel components
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
Steel structure fabrication workshop
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

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2009

  • Total Annual:

    15 Million -20 Million

  • Employee Number:

    100~110

  • Ecer Certification:

    Verified Supplier

Qingdao Ruly Steel Engineering Co., Ltd is a professional steel structure fabrication and engineering company, located in Qingdao, China, which integrates steel structure design, research and development, manufacturing and installation. The project types include prefabricated steel workshop, warehou... Qingdao Ruly Steel Engineering Co., Ltd is a professional steel structure fabrication and engineering company, located in Qingdao, China, which integrates steel structure design, research and development, manufacturing and installation. The project types include prefabricated steel workshop, warehou...

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  • Qingdao Ruly Steel Engineering Co.,Ltd
  • Tieshan Industrial zone, Huangdao District, Qingdao City.
  • https://www.rulysteelstructure.com/

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