Fabrication High Strength Low Alloy Painted/Galvanized Steel Component Bolt/Welded Connection Prefab Steel Structure
Product Attributes
| Attribute |
Value |
| 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 Roof |
Steel cladding sheet, Sandwich Panel |
| Columns & Beams |
H-Section Steel |
| Shot Blasting Level |
SA 2.5 |
| Certification |
CE, AISC, SGS, BV, ISO, GB |
| Installation |
Engineer Guidance on Site |
| Drawing |
CAD, TEKLA, 3D Model, PKPM, BIM |
| HS Code |
9406900090 |
| Transport Package |
Standard Export Package or Customer′s Requirement |
| Production Capacity |
30000ton/Year |
| Features |
Prefab Steel Structure, Large Span, Multi-Floor |
| Connection Form |
Bolt Connection |
| Parapet Wall |
As Requested |
Product Description
Steel structure buildings feature high fire resistance and strong corrosion resistance. The main bearing components are composed of steel, including steel columns, steel beams, and steel roof trusses. Each component is connected using welds, bolts, or rivets.
The roof and wall can be made of composite panel or veneer. Galvanized sheet metal prevents rust and corrosion. Self-tapping screws ensure tight connections between plates to prevent leakage. Composite panels with PU, EPS, fiber glass, or rock wool insulation provide excellent thermal insulation and fire-retardant properties. Brick walls can also be used for steel structure maintenance.
Applications include large-scale workshops, warehouses, supermarkets, entertainment centers, and modular steel structure garages.
Material List
| Main Steel Frame |
| Column |
Q235, Q355 Welded H Section Steel |
| Beam |
Q235, Q355 Welded H Section Steel |
| Secondary Frame |
| Purlin |
Q235 C and Z purlin |
| Knee bracing |
Q235 Angle Steel |
| Tie Bar |
Q235 Circular Steel Pipe |
| Bracing |
Q235 Round Bar |
| Column and Horizontal Bracing |
Q235 Angle Steel, Round Bar or Steel Pipe |
| Maintenance system |
| Roof Panel |
EPS Sandwich Panel / Fiber Glass Sandwich Panel / Rock Wool Sandwich Panel / PU Sandwich Panel / Steel Sheet |
| Wall Panel |
Sandwich Panel / Corrugated Steel Sheet |
| Accessories |
| Window |
Aluminium Alloy Window / PVC Window |
| Door |
Sliding Sandwich Panel Door / Rolling Metal Door / Personal Door |
| Downspout |
PVC |
| Structure Usage |
Up to 50 years |
| Finishing Options |
Vast array of colors and textures available |
| Paint Options |
Alkyd painting, two primary painting, two finish painting (gray paint, red paint, white paint, epoxy zinc etc.) Or Galvanized |
Project Showcase
Project Usage: High-End Intelligent Hydraulic Machine Tool Equipment
Size of the plant: Total Area 9,702 Sqm
Steel Structure Weight: 630Ton
Project Usage: Logistics Steel Warehouse For High-Speed Rail Station
Size of the plant: Total Area 24,570 Sqm
Steel Structure Weight: 985Ton
Project Usage: Textile Manufacturing Machine Tool Equipment
Size of the plant: Total Area 6,615 Sqm
Steel Structure Weight: 750Ton
Our Company
Qingdao Ruly Steel Engineering Co., Ltd is a professional steel structure fabrication and engineering company located in Qingdao, China. We integrate steel structure design, research and development, manufacturing and installation. Our project types include prefabricated steel workshops, warehouses, logistics parks, and other light steel structure civil building systems, as well as high-rise residential buildings, exhibition centers, stadiums, airport stations, bridges, power plants, chemical plants, and oil and gas facilities.
Our steel structure processing plant covers 35,000 square meters with 20,000 square meters of plant space. With over 100 employees, our monthly production capacity exceeds 1500 tons. Our components include light/heavy H steel, BOX steel, cross-shaped section steel, large diameter submerged arc straight-weld pipe, steel model structures, C/Z purlins, and machining fitting components.
We have passed and strictly implement ISO9001:2008 quality management, ISO14001:2004 environmental, and GB/T28001:2001 occupational health systems, with ASTM certification in the United States and international SGS product certification.
Certifications
Our Services
- Structural steel fabrication, painting, galvanizing, pre-assembly
- Designing, fabrication and installation for Prefabricated steel structure buildings
- Deepen or design fabrication drawings based on your architectural drawings
- Technical advice for usage, maintenance and improvements
Quality Control
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
- 20% magnetic powder testing
- Supply third-party inspection assistance
Shot blasting and painting quality control
- Shot blasting grade Sa. 2.5
- Paint primer within 5 hours after shot blasting
- Dry Film Thickness (DFT) >75UM
Frequently Asked Questions
Q: You are manufacture factory or trading company?
A: We are manufacture factory. And you are welcomed to visit us at any time. The quality control flow and sales team will show you our professionalism. Also you will can get best and most competitive price after visiting us.
Q: Is your price competitive compared with other companies?
A: Our business objectives are to give the best price with same quality and best quality with the same price. We will do everything we can to reduce your cost and guarantee you get the best product that you paid for.
Q: Can you send engineers or whole team to install my project?
A: We will give detailed installation drawings for free. We can send engineers as installation director or a team upon request.
Q: Do you accept container loading inspection?
A: You are welcomed to send an inspector, not only for the container loading, but any time during the production time.
Q: Do you offer designing service for us?
A: Yes, we could design full solution drawings as your requirements. By using AutoCAD, PKPM, MTS, 3D3S, Tarch, Tekla Structures (Xsteel) and etc. we can design complex industrial building like office mansion, super marker, auto dealer shop, shipping mall, 5 star hotel.
Q: What is the delivery time?
A: Delivery time depends on order quantities. In general the delivery time to nearest seaport in China will be 40 days after receiving deposit.
Q: How can you get a quotation for your projects?
A: You can contact us by email, phone, WhatsApp,Viber and so on 24*7 and you will get reply within 8 hours.
Packing And Transport
All structure components, panels, bolts and accessories are well packed with standard export packaging suitable for ocean transportation and loaded into 40'HQ containers. Our skilled workers use cranes and forklifts to prevent damage during loading.
Design Services
For each project, we provide preliminary layout drawings, 3D Tekla models, and installation drawings to ensure project completion.
Why Choose Us?
- Professional design team capable of custom drawings or steel quantity calculations
- Skilled fabrication team with advanced equipment and project-specific production schedules
- One-stop service with integrated project proposals
- Professional QC team ensuring product and service quality
- Comprehensive after-sales service including maintenance support
Our Production Line
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