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BS1139 1.1 Scaffolding Tubes: Specifications, Applications, And Safety Standards

BS1139 1.1 specifies the requirements for tubes used in scaffolding, ensuring safety and durability in construction projects. It covers dimensions, materials, and manufacturing standards, promoting consistency and reliability for these critical components. Compliance with the standard is crucial for protecting workers and preventing accidents on site.
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BS1139 1.1 is a British Standard that provides comprehensive guidelines for tubes used in scaffolding systems. Scaffolding tubes play a vital role in supporting workers and materials during construction, maintenance, and repair projects. These tubes must be sturdy, resilient, and capable of withstanding various weather conditions and mechanical stresses. The BS1139 1.1 standard ensures that scaffolding tubes meet stringent requirements for dimensions, material composition, and manufacturing processes. It covers aspects like wall thickness, length, and diameter tolerances, as well as chemical composition, mechanical properties, and testing procedures. The standard also addresses the marking and identification of tubes, facilitating traceability and quality control. Compliance with BS1139 1.1 is essential for guaranteeing worker safety and preventing accidents on construction sites. It provides a unified reference for manufacturers, suppliers, and users, promoting fair competition and facilitating international trade.

Scaffolding tubes conforming to BS1139 1.1 are widely applied in various construction-related industries due to their robustness, reliability, and safety. These tubes serve as the backbone of scaffolding systems, supporting workers, tools, materials, and equipment during different construction stages. Their application is not limited to building construction but also extends to civil engineering projects, infrastructure development, repair works, and maintenance activities.

In the construction industry, BS1139 1.1 scaffolding tubes are used to erect temporary structures for accessing high-rise buildings, facilitating exterior and interior works. They provide a stable working platform for workers engaged in masonry, concreting, painting, plastering, and other construction-related tasks. The tubes are also used for shoring systems that provide temporary support to building structures, enabling safe excavation and foundation works.

Civil engineering projects like bridges, tunnels, culverts, and roadworks also rely on BS1139 1.1 scaffolding tubes. They offer stability and support for formwork systems, allowing concrete structures to be cast in place safely. Additionally, these tubes are indispensable in creating falseworks for bridge beams, deck slabs, and retaining walls.

The versatility and strength of BS1139 1.1 scaffolding tubes make them ideal for various specialized applications, such as staging, platforms for events, exhibitions, and theatres, as well as temporary roofs and shelters.


SizeChemical CompositionMechanical Properties
48.3*4

Carbon (C) Max : 0.20%

Silicon(S)Max : 0.30%

Phosphorus (P) Max : 0.035%

Sulfur (S) Max : 0.035%

Nitrogen(Ni) Max : 0.009%

Yield Strength Min:  235 MPa

Tensile Strength Min: 340 MPa

Elongation Min: 24%


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