The construction of metal structures using mechanical joining systems requires a thorough understanding of the properties of the materials used. Not all metals respond in the same way to structural loads, corrosion or assembly requirements. The success of a bolted project lies in choosing the type of profile that balances strength, durability and ease of assembly, ensuring that the structure maintains its integrity over time and environmental conditions.
Main types of metals in modular construction
The industry uses various alloys depending on the technical requirements of each project. The patented joining system allows these materials to be efficiently integrated:
- Carbon steel: It is the predominant choice when maximum structural strength is sought. It is used in frames, bridges and hollow sections due to its hardness and load-bearing capacity.
- Stainless steel: Noted for its exceptional resistance to rust and stains. It is the preferred material for exposed architectural applications or in high salinity environments.
- Aluminum: Valued for its extreme lightness and ductility. It is ideal for mobile structures, enclosures and components requiring high conductivity and natural corrosion resistance.
- Copper: Although its structural use is limited, it is the benchmark in fluid and air conditioning installations due to its malleability and recyclable properties.
Comparison of materials for tubular profiles
| Metal | Featured Property | Application in Structures |
| Carbon Steel | Pure mechanical strength | Pillars, beams and platforms |
| Stainless Steel | Corrosion immunity | Facades and chemical environments |
| Aluminum | Lightness/strength ratio | Pergolas, porches and transportation |
| Copper | Conductivity and malleability | Refrigerant lines and plumbing |
Performance and specific applications
Each alloy offers a differential behavior that determines its place in the design of a bolted assembly.
- Galvanized and Carbon Steel: The use of steel pipe, especially if galvanized, is the standard technical recommendation for large structures. It combines extreme rigidity with effective protection against rust, making it the ideal support for modular buildings and housing.
- Stainless Steel Solutions: Iconic structures have proven that this metal can last for centuries. In bolted assemblies, it is used for drainage components, railings and exposed supports where aesthetics and hygiene are a priority.
- Aluminum Systems: Its ease of processing in multiple forms (cast, sheet or tube) makes it indispensable in the manufacture of light structures that must be assembled and disassembled frequently. Its maintenance is practically null.
Versatility of mechanical joints
Regardless of the material selected, the secret of a durable construction is the joining system. Mechanical joints facilitate the integration of these different metals into the same project without the risks of thermal deformation involved in welding. By using connectors designed for each type of tubular section, uniform load transfer is ensured, allowing metals as different as aluminum and steel to work in structural harmony.
Choosing the right metal based on its ductility, corrosion resistance and toughness is the first step to a successful construction site. The combination of these materials with bolted assembly technology offers a professional construction solution, adaptable to any environment and technical need.
Starmodul’ s catalog offers solutions for every construction challenge. Choose our structure kit for a fast and professional assembly system.
