Steel Frame for Steel Structure Building Warehouse Prefab Factory Workshop Shed
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
Our steel structure buildings feature high fire resistance and strong corrosion resistance. The main load-bearing components are made of steel, including steel columns, beams, and roof trusses, connected by welds, bolts, or rivets.
The roof and walls can be constructed with composite panels or veneers. Galvanized sheet metal prevents rust and corrosion, while self-tapping screws ensure tight connections between panels to prevent leakage. Composite panels with PU, EPS, fiberglass, or rock wool insulation provide excellent thermal and fire-retardant properties. Brick walls can also be used for steel structure maintenance.
These structures are ideal for large-scale workshops, warehouses, supermarkets, entertainment centers, and modular steel 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 portfolio includes prefabricated steel workshops, warehouses, logistics parks, high-rise buildings, exhibition centers, stadiums, airports, bridges, power plants, chemical plants, and oil/gas/mining facilities.
Our 35,000 square meter facility includes 20,000 square meters of plant space with over 100 employees. Monthly production capacity exceeds 1,500 tons of steel structures, including 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 maintain ISO9001, ISO14001, and GB/T28001 certifications, along with ASTM and SGS certifications. Our quality-first approach, technological innovation, and strong client relationships ensure we deliver the most reasonable solutions for every project.
Certifications
Our Services
- Structural steel fabrication, painting, galvanizing, pre-assembly
- Designing, fabrication and installation for prefabricated steel structure buildings
- Detailed fabrication drawings based on your architectural plans
- 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
- Third-party inspection assistance available
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
Pre-assembly testing of all connection details.
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 packed with standard ocean transportation packaging 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 success.
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
- Dedicated QC team ensuring product and service quality
- Comprehensive after-sales service including maintenance advice
Our Production Line
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