Box Steel Column Fabricators Q235B Q355B ASTM A36 Structural Beams
Basic Properties
Place of Origin:
China
Brand Name:
Ruly Steel
Certification:
SGS, BV,ISO
Model Number:
Ruly0044
Trading Properties
Minimum Order Quantity:
30 Ton
Price:
USD900-USD1500 Per Ton
Payment Terms:
L/C,T/T,Western Union
Supply Ability:
2000 Ton Per Month
Product Summary
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 ...
Product Details
Highlight:
custom metal fabrication
,portal frame buildings
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 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
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
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
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
Related Products
-
Prefab Steel Granary Warehouse with Double-Layer Q355B Structure
Granary Double-Layer Steel Structure Prefabricated Steel Structure Product Specifications Raw Steel Material Q235B, Q355B, ASTM A36 Application Steel Workshop, Steel Structure Platform, Structural Roofing, Frame Part Surface Treatment Painting or Hot-DIP Galvanized Service Life 50 Years Wall and ... -
Q235B Q355B PEB Steel Building Frame for Warehouse Workshop
Q235B Q355B PEB Steel Buildings Warehouse Workshop Frame Product Specifications Attribute Value Application warehouse, workshop, plant Features Pre Engineered Building Structure Type PEB Steel Buildings Warehouse Raw steel material Q235B, Q355B Surface treatment Painting Service life 50 Years Wall ... -
Q235 Q355 Prefabricated Steel Structure Building for Apartments
Q235 Q355 Multi Floors Steel Structure Buildings / Prefabricated Metal Buildings Product Specifications Attribute Value Application Prefabricated Steel Structure Building Usage PEB Steel Buildings, Steel Structure Apartment Raw steel material Q235B, Q355B Surface treatment Painting or Hot-dip ... -
Steel Office Buildings For Modern Businesses Cost Efficient Custom Built Fast Assembly
Product Description Our steel office buildings are designed to provide a cost-effective, durable, and fast-to-assemble solution for businesses. Whether you are looking to build a new office space, expand an existing one, or need a temporary office, our modular steel structures can meet your needs. ...
