Qingdao Ruigang Steel Structure Co., Ltd. sales3@ruiganggroup.com 86--13370850031
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Prefabricated Steel Structure Building with Q355/Q235B Steel Grade and Hot-dip Galvanization for Wind Load Up to 300 km/h
Prefabricated Steel Structure Building with Q355/Q235B Steel Grade and Hot-dip Galvanization for Wind Load Up to 300 km/h
Product Details
Place of Origin: Shandong, China
Brand Name: RG_STEEL
Certification: SGS, BV,ISO
Model Number: RG_STEEL
Payment & Shipping Terms
Minimum Order Quantity: 200 Square Meter
Price: USD30-99 Per Square Meter/ Negotiable
Packaging Details: As request
Delivery Time: 30 Days
Payment Terms: L/C,T/T,Western Union
Supply Ability: 20000 Square Meter Per Month
Get Best Price
Product Details
Highlight:
Grade: |
Q235 / Q355 / Q235B / Q355B |
Connection Type: |
Bolted, Welded |
Application: |
Industrial And Commercial |
Type: |
Prefab Steel Structure Building |
Design Standard: |
AISC, MBMA, AWS, ASTM |
Wind Load: |
Up To 300 Km/h |
Surface Treatment: |
Hot-dip Galvanization, Paint Coating |
Wall Cladding: |
Galvanized Steel Sheet, Sandwich Panel, Metal Cladding |
Grade: |
Q235 / Q355 / Q235B / Q355B |
Connection Type: |
Bolted, Welded |
Application: |
Industrial And Commercial |
Type: |
Prefab Steel Structure Building |
Design Standard: |
AISC, MBMA, AWS, ASTM |
Wind Load: |
Up To 300 Km/h |
Surface Treatment: |
Hot-dip Galvanization, Paint Coating |
Wall Cladding: |
Galvanized Steel Sheet, Sandwich Panel, Metal Cladding |
Product Description
Prefabricated Workshop Building for Industry Design Warehouse Light Steel Structure
Product Overview
Steel Structure Building represents the pinnacle of modern engineering, utilizing high-grade structural steel members for its primary load-bearing framework. Unlike traditional concrete or timber, steel buildings offer an unparalleled strength-to-weight ratio, allowing for expansive, column-free designs and rapid site deployment. As the global industry shifts toward sustainability and efficiency, steel structures have become the definitive choice for industrial plants, logistics hubs, and commercial complexes, providing a fire-resistant, seismic-stable, and 100% recyclable building solution that safeguards your long-term investment.
Technical Specifications
| ITEMS | SPECIFICATION |
|---|---|
| Main Steel | Q355, Q235, Q355B, Q235B, etc. |
| Anti-rust protection | Hot-dip galvanized or anti-rust painting |
| Purlin and girts | Cold-rolled C or Z steel, Q355 or Q235 |
| Column & Beam | Welded or Hot rolled H-section |
| Connection method of steel structure | Welding connection or bolt connection |
| Wall & Roof | Sandwich panel or steel sheet |
| Door | Rolled up door or Sliding door |
| Window | Plastic steel or Aluminum alloy window |
| Surface | Hot-dip galvanized or painted |
| Crane | 5MT, 10MT, 15MT, and more |
Engineering & Design Expertise
The core of every Ruigang project is our high-caliber technical team. We believe that a superior building begins with intelligent design that balances safety, aesthetics, and cost-efficiency.
- Advanced 3D Modeling (Tekla & AutoCAD): We utilize industry-leading software like Tekla Structures for full-scale 3D detailing. This ensures a "zero-clash" design where every bolt hole and connection fits perfectly, significantly reducing on-site installation time and labor costs.
- Global Code Compliance: Our engineers are proficient in adapting designs to meet international building standards, including ASTM (US), Eurocode, and GB (China). We ensure your building is calibrated to withstand localized wind velocities, snow loads, and seismic requirements.
- Customized Value Engineering: We don't just design; we optimize. Our team provides "Value Engineering" to help clients minimize material waste while maximizing structural performance, providing the most cost-effective solution for your specific budget.
Advanced Manufacturing Process
Our factory leverages automated technology to ensure that every structural component meets the most rigorous engineering tolerances.
- Precision Cutting & Drilling: Utilizing multi-axis CNC high-definition flame and plasma cutting systems for millimeter-level accuracy and clean edges.
- Automated Fusion Welding: All primary H-sections undergo Submerged Arc Welding (SAW), ensuring deep-penetration, defect-free structural joints that outperform manual welding standards.
- Mechanical Shot Blasting: Every steel member is cleaned to Sa2.5 grade via automated shot blasting, removing rust and scales to create the perfect surface for superior coating adhesion.
Quality Control & International Certification
At Ruigang, quality is a constant. We implement a multi-stage inspection protocol and hold prestigious international certifications to ensure our buildings meet global safety standards.
- Authoritative Certifications (ISO & CE): Our manufacturing facility is ISO 9001:2015 certified for quality management. Furthermore, our products carry the CE Mark, confirming compliance with European health, safety, and environmental protection standards.
- Raw Material Verification: 100% traceability for all Q355B/Q235B structural steel through original Mill Test Certificates (MTC).
- Non-Destructive Testing (NDT): Critical load-bearing welds undergo Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) by certified inspectors to guarantee subsurface integrity.
- Pre-Erection Trial Fit: Complex structural nodes are trial-assembled at our facility to validate geometry and bolt-hole alignment before they reach your project site.
Global Footprint & Proven Success
With thousands of successful projects spanning over 50+ countries, Ruigang has established a formidable presence across Africa, Central Asia, the Middle East, and South America.
- Regional Expertise: From high-snow load environments in Kazakhstan to high-corrosion coastal zones in Tanzania, we adapt our designs to excel in any regional climate.
- Prestigious Feedback: Our international clients consistently commend our buildings for their seamless site-erection and superior finish quality, leading to a high recurring client rate and strong project testimonials.
Optimized Packing & Global Logistics
Strategically located near Qingdao Port, we provide distinct logistical advantages that reduce lead times and transit risks.
- Volumetric Nesting Technology: We use 3D software to optimize loading into 40' HQ containers, maximizing space and significantly lowering landed shipping costs.
- Safe-Transit Packaging: Components are bundled using specialized steel cradles and high-tensile strapping to prevent movement, abrasion, or structural distortion during maritime transit.
- Intuitive Identification System: Every member is etched with a unique tracking code corresponding to our 3D shop drawings, simplifying on-site sorting and installation for your local crews.
Frequently Asked Questions
You are manufacture factory or trading company?
As a direct manufacturing facility based in Qingdao, China--just a stone's throw away from the Qingdao Port--we pride ourselves on our stringent quality management system, expert design team, robust production capabilities, and extensive manufacturing experience.
How about your quality control?
1) We only cooperate with high-quality raw material suppliers with strength and reputation, and our quality inspection department will conduct 100% strict testing on the raw materials before entering our factory.
2) Our workers are all certified and regularly assessed. In this way, we can guarantee the production quality.
3) During the production process, we have three parts: self-inspection, mutual inspection, and workshop inspection. Only qualified product can move to next step.
4) Before delivery, inspection working will check everything with delivery list, to ensure that we send you every items and you can install it locally.
2) Our workers are all certified and regularly assessed. In this way, we can guarantee the production quality.
3) During the production process, we have three parts: self-inspection, mutual inspection, and workshop inspection. Only qualified product can move to next step.
4) Before delivery, inspection working will check everything with delivery list, to ensure that we send you every items and you can install it locally.
What's the delivery time?
Usually 30 days. Don't worry about the delivery time at all, we have perfect management plan for each project, then deliver to you on time.
Do you offer service for installation?
Yes, But we will provide very detailed installation drawings and videos. Generally, you can install it locally, they are all prefabricated and bolted. Otherwise, we can also send engineer for guiding installation.
What's the payment term?
We have two payment terms.
1) 30% advance payment before producing by T/T, and 70% balance by T/T before shipping.
2) 100% irrevoable L/C
1) 30% advance payment before producing by T/T, and 70% balance by T/T before shipping.
2) 100% irrevoable L/C
How to get a fast quotation?
Please send us your project preliminary drawing, then we would quote you accordingly in 2 days. Or we confirm several questions with you, then do quotation list with details for you timely.
Is your price competitive compared with other companies?
We are direct factory, yes, it's competitive, price and quality are guaranteed.
Our Steel Structure Fabrication Factory
Ruigang Heavy Industry Co., Ltd. is a leading provider of integrated steel structure solutions, offering a seamless, end-to-end service that covers every phase, from innovative design through to final erection. Our commitment to delivering efficient, high-quality, and sustainable construction is driven by the expertise of 115 dedicated professionals and supported by our 50,000m2 advanced facility. Situated strategically in the West Coast New District, we leverage convenient access to Qingdao Port for efficient logistics.
Building a more resilient world, one structure at a time.
Contact Ruigang Heavy Industry today for a professional engineering consultation and a transparent technical proposal.
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All Reviews
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AVery happy to see the materials are of very good quality, and packed very well for shipping, excellent after-sales service regarding unloading and installation, always fast response, favorable price, fast delivery, will definitely cooperate again, my very good partner
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KQuality： the steel structure’s quality exceeds my expectations! All components are well-crafted, with smooth welds and durable materials that feel solid and reliable. No defects found—truly top-notch for long-term use. Installation： installation was a breeze! The factory provided clear, easy-to-follow guides, and all parts fit perfectly without adjustments. Even for my team, the process went faster than planned—super user-friendly. Customized service： their customized service is outstanding! They listened carefully to my specific needs, adjusted the design promptly, and kept me updated throughout. Quick responses and great attention to detail made the whole experience stress-free.
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DWe chose this company for our steel structure project, and the outcome surpassed all expectations! Their team was professional and efficient from design to construction, making the entire process seamless. The high-quality steel ensures a stable, durable structure that perfectly meets our needs. Notably, the construction period was nearly halved compared to traditional methods, saving us significant time and costs. Attention to detail was impressive—from precise welding to thorough anti-rust coating. The team communicated promptly and resolved issues quickly, giving us complete peace of mind. The finished building is not only aesthetically pleasing but also boasts excellent earthquake and wind resistance, with a high safety factor. Highly recommend for anyone needing steel structure construction—cost-effective, reliable, and trustworthy. We’ll definitely cooperate again!
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