Building Construction Material Structural Steel / Box Steel Column
Beams Fabrication
What is box-shaped steel column & beam:
Box-shaped column is welded by four steel plates, and the
manufacturing process is basically the same as that of the welded
H-shaped steel. Welded steel box beam and box column is widly used
in the steel structure proejct. Compared with H-shaped steel column
has only one strong axis, box column is a strong axis in the X and
Y directions, and a stiffening plate at the node, a strong node
domain is formed, and the force condition is superior to that of
the rolled H-beam. We could fabricate it in many ways or as your
request. Here we will show you one of the fabriation method.
How to fabricate steel box beam & box column:
1. Firstly, the above cover plate is used as the assembly
reference, and the partition plate and the side web assembly line
are respectively released on the assembly surface according to the
construction drawing requirements, and the sample punching mark is
used.
2. First assemble the upper cover and the partition, and assemble
them on the tire mold. After assembly, the welding must be
completed before proceeding to the next process.
3. Before the web is assembled, the flatness of the web must be
checked. When assembling, the assembly should be assembled in one
direction. First, the middle stiffener is positioned, and then the
web is positioned.
4. The whole assembly of the box structure is completed after the
U-shaped structure is completed. First, the edge of the U-shaped
structure web is corrected to make the unevenness <L/1000, and
then the web assembly positioning line is released on the lower
cover, and the U-shaped is inverted. Structural assembly, using one
direction assembly, positioning spot welding using symmetric
welding method.
5. The last side of the separator is welded by electroslag pressure
welding, and electroslag pressure welding is used for special
equipment.
Remarks: It can be processed according to the drawings and can meet
the processes of shot blasting, punching, stiffening (joining
board), painting and so on;
Fabrication capacity:
We have three steel structure production lines, equipped the flame
cutting machine, H-Section steel assembly machine, gantry welding
machine and shot-blasting machine, paint spray booth. We also put
apart the space for the fabrication of heavy-duty and large
structure steel components in our workshop.
Specification:
| Products Name | Building Construction Material Structural Steel / Box Steel Column
Beams Fabrication |
| Grade | Q235B,SS400,Q345B,S235JR,S275JR,ASTM-A36 |
| Size | 100x100mm-1500x1500mm |
| Thickness | 8mm-100mm |
| Length | 2-20meters |
| Shape | Box shaped |
| Delivery Time | 7-15 Days if in stock size, or it will be 20-40 for customized |
| Payment Term | L/C or T/T |
| Package | By bundle or as customer's requirement |
| Application | Engineering or project, plant and equipment, mechanical equipment,
bridge, etc |
| Surface | Black, coating, galavnized |
| MOQ | 30Ton |
What service we could do for you:
1. Structural steel fabrication, painting , galvanizing ,
pre-assembly
2. Designing, fabrication and installation for Prefabricated steel
structure building.
3. Deepen or design the fabrication drawing or shop drawing based
on your architectural drawing and construction drawing
4. Engineering consulting service
Quality control:
QC/Technical Support
Raw material quality control
Thickness tolerance <0.25mm
Yield and tension strength testing in-house
Third party inspection certificate
Supply traceable mill certificate
Structural steel fabrication quality control
100% testing dimension tolerance <1mm
20% sample welding line ultrasonic testing, no fault, full
penetration.
20% magnetic powder testing, no bubble, no defect, Smooth and Full
Supply third-party inspection assistance.
Shot blasting and painting quality control
Shot blasting grade Sa. 2.5 Metal luster, no rust, no oil dirt, no
welding spatter, Roughness >75um
Paint primer within 5 hours after shot blasting, Holiday-free
coatings, smooth, No dust, Dry Film Thickness (DFT) >75UM
Pre-assembly testing the connection details.
Why us:
1. Professional design team, we could design the drawing as your
requirement or calculate the steel quantity based on your drawing.
2. Skilled fabrication team and advanced equipment. We make the
independent production schedule to each project.
3. One-stop service: We have completed lots such kinds of projects,
we could provide the integrated proposal for your project.
4. Professional QC team will guarantee that we will provide the
production and service as your request.
5. After sales service: If it has any questions that need us to do
in your process of using, such as the maintain of outside
insulation and steel components, just tell us , we will try to
provide the service as well as we can.
