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BS1139 HDG Scaffolding Tube (Hot-Dipped Galvanized Steel Pipe)
BS1139 HDG scaffolding tubes represent a commitment to absolute safety and excellence in temporary construction support solutions. Manufactured to meet the stringent requirements of international scaffolding standards (including BS1139, EN39, and JIS G3444), these high-strength carbon steel pipes provide the essential backbone for staging, formwork, and heavy-duty shoring systems.
To ensure maximum longevity and low maintenance in severe working environments, every tube undergoes a premium Hot-Dipped Galvanizing (HDG) process. This creates a highly durable zinc coating capable of withstanding rust, moisture, and mechanical wear. Whether used for industrial renovations or high-rise exterior painting, our HDG scaffold pipes deliver the reliable structural stability that global contractors demand.
Technical Specifications
| Technical Category | Specification Details |
| Product Name | HDG Galvanized Steel Tube Scaffolding Pipe |
| Standard Compliance | BS1139, EN39, EN10219, EN10025, JIS G3444 |
| Outer Diameter (OD) | 48.3mm (1.5 inch / 1-1/2") |
| OD Tolerance | +/- 0.3mm |
| Wall Thickness | 3.2mm, 4.0mm |
| Thickness Tolerance | +/- 10% |
| Material Grade | Q235, S235GT |
| Surface Treatment | Hot Dipped Galvanized (HDG) |
| Zinc Coating Weight | 180 - 600 g/m² (Approx. 30 - 40+ microns) |
| Length | 1m - 6m (Customizable 5' - 21') |
Key Advantages
Product Applications
Commercial & Residential Construction: Supporting temporary work platforms for masonry, plastering, and exterior wall maintenance.
Industrial Maintenance: Providing safe access platforms for workers in chemical plants, oil refineries, and offshore marine facilities where heavy zinc coating is mandatory.
Event & Stage Infrastructure: Serving as the robust structural backbone for outdoor stages, concert lighting trusses, and grandstands.
Formwork & Shoring: Supporting heavy concrete slabs and load-bearing structures during the curing process.
Packaging & Delivery
Frequently Asked Questions (FAQ)
Q: What does HDG stand for, and why is it crucial for scaffolding?
A: HDG stands for Hot-Dipped Galvanized. The scaffolding tubes are fully immersed in a bath of molten zinc, coating both the inside and outside. This creates a metallurgical bond that provides superior rust protection compared to standard painted or electro-galvanized pipes, drastically reducing maintenance costs.
Q: Can I customize the zinc coating weight for specific harsh environments?
A: Yes. While our standard zinc coating is around 30-40 microns, we can customize the HDG process to achieve zinc weights from 180g/m² up to 600g/m² to meet extreme environmental demands, such as offshore or marine applications.
Q: Are your BS1139 tubes compatible with standard couplers?
A: Absolutely. By strictly adhering to the 48.3mm OD standard with a tight tolerance of +/- 0.3mm, our tubes are 100% compatible with universal drop-forged and pressed scaffolding couplers.
Q: Do you test the chemical components for every order?
A: Yes, we perform chemical analysis and tensile testing for every order to ensure that all tubes comply perfectly with the designated S235GT or Q235 steel grades.
Inventory
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