DIN EN 1090-3:2019-07

Executing and documenting aluminium structures in compliance with standards

DIN EN 1090-3 specifies the technical rules for the execution of aluminium structures. It describes requirements for manufacturing, processing, welding, mechanical connections, assembly, surface treatment and quality assurance. The standard supports structural designers, manufacturers and contractors in implementing aluminium structures safely, durably and in compliance with standards. It is part of the EN 1090 series of standards and applies to load-bearing components and structures made of aluminium.

What is DIN EN 1090-3 about?

The standard defines requirements for the execution of aluminium structures throughout the entire manufacturing and assembly process. The focus is on execution classes EXC1 to EXC4, requirements for welding and joining techniques, geometric tolerances, and inspection and documentation obligations. In addition, the standard includes specifications for quality management, material traceability and corrosion protection measures.

Topics covered

• Execution of aluminium structures and load-bearing aluminium components
• Execution classes EXC1 to EXC4
• Structural materials and aluminium alloys
• Welding of aluminium and aluminium alloys
• Bolted, riveted and bonded connections
• Assembly and site requirements
• Geometric tolerances and execution accuracy
• Quality management, documentation and traceability
• Inspections, testing and non-destructive testing methods
• Corrosion protection and surface treatment

Practical relevance

Aluminium structures are used, among other areas, in hall construction, façade construction, bridge construction, plant engineering and temporary structures. DIN EN 1090-3 provides a uniform basis for the manufacturing, assembly and quality assurance of aluminium structures. It helps companies ensure execution quality, safety and durability throughout the entire life cycle of a structure.

The standard is particularly relevant for companies that manufacture or assemble load-bearing aluminium structures. It establishes clear requirements for manufacturing quality, inspection processes and documentation and supports proof of standard-compliant execution for clients and inspection bodies.

Changes compared with DIN EN 1090-3:2008-09

The 2019 edition was comprehensively revised. The most important changes include:

• Revision of numerous requirements relating to execution documents, materials and welding procedures
• Update of the rules for the qualification of welding procedures and welding personnel
• Adjustments to inspections, acceptance criteria and quality requirements for welds
• Revision of various tables on tolerances, materials and execution classes
• Introduction of the new informative Annex N on studs using arc stud welding
• Revision of the bibliography and editorial adjustments

Target audience

• Structural designers
• Civil engineers
• Aluminium construction companies
• Manufacturers of aluminium structures
• Welding engineers and welding coordinators
• Inspection engineers and experts
• Quality managers in metal and aluminium construction
• Clients and contractors in the construction sector

Conclusion

DIN EN 1090-3 provides the central basis for the standard-compliant execution of aluminium structures. It supports the safe manufacturing, assembly and quality assurance of load-bearing aluminium structures and helps meet requirements for safety, durability and execution quality across all project phases.

This document replaces DIN EN 1090-3:2008-09 .