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Benchmark Case | Threaded Hot-Dip Galvanized Pipes Exported to Spain for Greenhouse Construction

Our client is a well-known agricultural infrastructure developer in Spain, specializing in the design and construction of high-efficiency commercial greenhouses. With Spain's thriving agricultural sector—particularly the demand for year-round cultivation of fruits, vegetables, and flowers—the client launched a large-scale greenhouse expansion project in Andalusia. The core requirement for the project was high-quality structural pipes that could withstand Spain's diverse climatic conditions (including coastal humidity, seasonal temperature fluctuations, and strong sunlight) while enabling quick and stable assembly to meet the tight construction timeline.

Product Solution: hreaded Hot-Dip Galvanized Pipes for Greenhouse Structures

After in-depth technical communication and analysis of the greenhouse design drawings, we tailored a solution centered on hot-dip galvanized steel pipes with threaded ends, perfectly matching the structural and environmental requirements of Spanish greenhouse construction. The key product advantages and customizations are as follows:

- High-Strength Base Material: Adopted Q235B (equivalent to EN S235JR) carbon structural steel as the base material. This grade exhibits excellent ductility and load-bearing capacity, providing stable structural support for the greenhouse frame. It can effectively resist wind loads and the weight of covering materials (such as glass or plastic film), ensuring the overall stability of the greenhouse.

- Hot-Dip Galvanizing Corrosion Protection: Each pipe underwent strict hot-dip galvanizing treatment with a zinc coating thickness of ≥85μm. This treatment forms a dense, wear-resistant protective layer that effectively isolates the steel from moisture, salt spray, and chemical residues in agricultural environments. The galvanized layer ensures the pipes have a service life of over 20 years, significantly reducing the client's later maintenance costs.

- Threaded Ends for Easy Assembly: Both ends of the pipes were precision-threaded (BSW/UNC standard, customizable per client requirements). The threaded design eliminates the need for complex welding during installation, allowing the construction team to assemble the greenhouse frame quickly and accurately. This not only improves construction efficiency but also ensures the stability of the connections, which is critical for the structural integrity of the greenhouse.

- Tailored Specifications: Based on the greenhouse's span and height design, we supplied pipes with customized specifications (OD: 20mm-65mm, wall thickness: 2.0mm-4.0mm, length: 3m-6m). The varied specifications perfectly matched different parts of the greenhouse structure, including the main frame, crossbeams, and support columns.

Application Scenario & Implementation

Our threaded hot-dip galvanized pipes were used as the core structural components of the commercial greenhouse, including the main load-bearing frame, side columns, and roof trusses. The implementation process was supported by our professional team to ensure project success:

1. Pre-delivery Quality Inspection: Conducted comprehensive inspections on each batch of pipes, including tests on galvanizing thickness, thread precision, and mechanical properties, ensuring full compliance with European quality standards and the client's requirements.

2. Efficient Logistics & Customs Clearance: Coordinated with professional logistics partners to arrange sea transportation, completing customs clearance and delivery to the client's construction site in Andalusia ahead of schedule. We also provided detailed product certificates and installation guidelines to facilitate smooth on-site construction.

3. On-Site Technical Support: Dispatched technical personnel to the construction site to provide guidance on pipe assembly, including threaded connection techniques and structural alignment. This support helped the client's team complete the greenhouse frame assembly 15% faster than the scheduled timeline.

Project Outcome & Client Feedback

With our high-quality threaded hot-dip galvanized pipes and professional support, the Spanish greenhouse expansion project was completed on time. The galvanized pipe frame has demonstrated excellent stability and corrosion resistance, effectively adapting to the local climatic conditions. The greenhouse is now in full operation, supporting year-round cultivation and helping the client improve agricultural production efficiency significantly.

The client expressed high satisfaction with our products and services: "The threaded hot-dip galvanized pipes from ROYAL STEEL are exactly what we needed for the greenhouse project. The galvanized layer provides reliable corrosion protection, and the threaded ends made assembly extremely efficient. The pipes' quality and ROYAL STEEL's professional logistics and technical support have laid a solid foundation for the success of our project. We look forward to long-term cooperation for future greenhouse construction projects in Spain."

For More Technical Details about the Project or to Customize Steel Structure Solutions, Please Visit the ROYAL GROUP Official Website or Contact Our Business Consultants.

ROYAL GROUP

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