Welded Steel Box Columns and Beams for Structural Buildings
| Application | Welded Steel Box Column, Steel Box Beams |
| Features | Structural Steel Building |
| 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 |
| Columns and Beam | H Section Column&Beam |
Welded steel box beams and columns are widely used in steel structure projects. Compared to H-shaped steel columns which have only one strong axis, box columns provide strong axes in both X and Y directions. With stiffening plates at nodes, they form strong node domains with superior force conditions compared to rolled H-beams. We offer customized fabrication to meet specific project requirements.
- Using the cover plate as assembly reference, partition plates and side web assembly lines are marked according to construction drawings
- Upper cover and partition assembly on tire mold with welding completion before next process
- Web assembly after flatness verification, with middle stiffener positioning first
- Complete box structure assembly after U-shaped structure completion with web edge correction
- Final separator side welding using electroslag pressure welding with specialized equipment
Note: Can be processed according to drawings including shot blasting, punching, stiffening, and painting processes.
Our facility features three steel structure production lines equipped with flame cutting machines, H-section steel assembly machines, gantry welding machines, shot-blasting machines, and paint spray booths. We have dedicated space for fabrication of heavy-duty and large structural steel components.
| 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 for stock sizes, 20-40 days for customized |
| Payment Term | L/C or T/T |
| Package | By bundle or as customer's requirement |
| Application | Engineering projects, plants, mechanical equipment, bridges |
| Surface | Black, coating, galvanized |
| MOQ | 30Ton |
- Structural steel fabrication, painting, galvanizing, pre-assembly
- Design, fabrication and installation of prefabricated steel structures
- Shop drawing development based on architectural and construction drawings
- Engineering consulting services
- Light gauge prefabricated steel warehouses, workshops, sheds
- Heavy industrial steel warehouses and workshops
- Steel structures with crane systems
- Truss roof steel warehouses and workshops
- Steel frame cold storage facilities
- Prefabricated steel houses, villas, and high-rise buildings
- Car parking structures and garages
- Structural steel fabrication for heavy industrial applications
- Professional design team for customized solutions
- Skilled fabrication team with advanced equipment and project-specific schedules
- One-stop service with integrated project proposals
- Quality control team ensuring product and service compliance
- Comprehensive after-sales service including maintenance support
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.