Introduction to SN EN 1090-2+A1:2024

The SN EN 1090-2+A1:2024 standard, titled Execution of steel structures and aluminium structures - Part 2: Technical requirements for steel structures, is a vital guideline for ensuring the quality and safety of steel structures within the construction industry. It encompasses technical requirements specifically aimed at the execution of steel structures, addressing aspects from material selection to assembly techniques, thereby ensuring that structures are built to the required performance standards. This standard is applicable to manufacturers, contractors, and professionals involved in the design, fabrication, and erection of steel structures across Europe.

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What SN EN 1090-2+A1:2024 covers

SN EN 1090-2+A1:2024 outlines the technical requirements necessary for the execution of steel structures. The standard focuses on the various processes involved in the construction and assembly of steel elements, including the selection of constituent materials, welding procedures, mechanical fastening techniques, and corrosion protection measures. It also addresses geometric tolerances, execution classes, and the use of structural support devices. Notably, this standard excludes guidelines on the design of steel structures, which are covered in other parts of the EN 1090 series, making it essential for professionals to understand the delineation of responsibilities in compliance and execution.

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Who needs to comply with SN EN 1090-2+A1:2024

The SN EN 1090-2+A1:2024 standard is crucial for a wide range of stakeholders within the construction materials and buildings industry. This includes manufacturers of steel components, construction contractors, engineering firms, and quality control professionals. Companies of all sizes, from small fabricators to large multinational corporations, must align their practices with the standard to ensure compliance. Additionally, roles such as project managers, site supervisors, and quality assurance personnel are directly impacted by the requirements outlined in this standard, as they are responsible for the execution and oversight of steel structure projects.

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Key requirements

  • Constitutive products for steel structures: Specification of materials and products used in steel construction.
  • Welding and consumables: Guidelines on welding methods, quality assurance, and selection of consumables.
  • Mechanical fasteners and high-strength cables: Standards for the use and installation of mechanical fasteners and tension cables.
  • Corrosion protection measures: Requirements for protecting steel from corrosion, including coatings and treatments.
  • Geometric tolerances and execution classes: Definitions of acceptable tolerances and classifications for execution quality.
  • Testing and assembly procedures: Protocols for ensuring structural integrity through testing and proper assembly practices.

These requirements are typically audited through regular inspections and compliance verification conducted by independent bodies to ensure adherence to the standards.

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How to implement SN EN 1090-2+A1:2024

Implementing SN EN 1090-2+A1:2024 involves a structured approach that begins with a gap analysis to assess current practices against the standard's requirements. Following this, organizations should focus on updating documentation to reflect compliance with the standard. Training sessions for staff involved in execution, quality control, and management are essential to ensure everyone understands the technical requirements. After training, conducting an internal audit helps identify any remaining gaps before proceeding to a certification audit with an accredited body. This process not only facilitates compliance but also enhances overall project quality and safety.

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Related standards

  • EN 1090-1: This standard outlines the general requirements for the execution of steel and aluminium structures, serving as a foundational document to SN EN 1090-2+A1:2024.
  • ISO 3834: Focuses on quality requirements for fusion welding of metallic materials, relevant to the welding processes discussed in SN EN 1090-2+A1:2024.
  • EN ISO 14731: This standard provides guidelines on the responsibilities of personnel involved in welding coordination, which is critical for compliance with execution requirements.
  • EN 1993: The Eurocode for steel structures, which complements SN EN 1090-2+A1:2024 by addressing design aspects that must be harmonized with execution practices.

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Why SN EN 1090-2+A1:2024 matters

Compliance with SN EN 1090-2+A1:2024 is essential for gaining a competitive advantage in the construction industry by ensuring quality and safety in steel structure execution. It also facilitates legal compliance with European regulations, enhancing market access and fostering customer trust. Organizations that align with this standard demonstrate a commitment to excellence, thereby attracting clients and partners. For further information on training and purchasing options related to this standard, please explore the links provided below.

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Last updated: April 15, 2026