This overview introduces SN EN ISO 13920:2023 (Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position). It specifies the general tolerances applicable to welded structures, emphasizing the importance of adherence to these standards within the manufacturing engineering sector.

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What SN EN ISO 13920:2023 covers

SN EN ISO 13920:2023 establishes the framework for general tolerances concerning linear and angular dimensions, as well as shape and position for welded constructions. It categorizes these tolerances into four classes based on customary workshop accuracy, providing guidelines to ensure that functionalities are met without the necessity of specifying individual tolerances on technical drawings. The standard applies to various welded structures, welding assemblies, and weldments, while acknowledging that more complex constructions may require additional considerations. Notably, it emphasizes the independence of dimensional and geometrical tolerances, allowing for flexible application across different manufacturing contexts.

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Who needs to comply with SN EN ISO 13920:2023

The primary audience for SN EN ISO 13920:2023 includes manufacturers in the engineering sector, particularly those involved in the production of welded structures. This encompasses a diverse range of companies, from large-scale industrial manufacturers to smaller fabrication shops. Roles within these organizations, such as quality assurance managers, design engineers, and production supervisors, will find this standard particularly relevant. Compliance is crucial for organizations aiming to enhance product quality, meet customer specifications, and maintain competitiveness in the global marketplace.

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Key requirements

• General Tolerances: The standard outlines general tolerances applicable to linear and angular dimensions as well as shape and position for welded constructions.
• Tolerance Classes: It categorizes tolerances into four classes based on functional requirements, allowing for flexible application based on workshop accuracy.
• Independence Principle: The tolerances specified operate under the independence principle, meaning dimensional and geometrical tolerances are assessed separately.
• Documentation Requirements: Manufacturing documentation must reference general tolerances; lacking this can render it incomplete.
• Special Provisions: For complex welded structures, additional provisions may be necessary to meet specific functional needs.
• Audit Procedures: Compliance is typically audited through reviews of manufacturing documentation and inspection of actual weldments against the stated tolerances.

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How to implement SN EN ISO 13920:2023

Implementing SN EN ISO 13920:2023 involves several key steps. First, organizations should conduct a gap analysis to assess current practices against the standard. This is followed by updating manufacturing documentation to ensure reference to relevant general tolerances. Training sessions should be organized for staff to familiarize them with the new requirements and their implications for production. An internal audit should be conducted to evaluate adherence to the updated processes. Finally, organizations may seek a certification audit to verify compliance and gain official recognition of their commitment to quality and precision in welded constructions.

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Related standards

• ISO 9001: Focuses on quality management systems, providing a foundational framework that complements the tolerance specifications of ISO 13920:2023.
• ISO 3834: Specifies quality requirements for fusion welding of metallic materials, aligning with the quality assurances in welded constructions.
• ISO 8015: Establishes principles for geometrical product specifications and verifies the independence of dimensional and geometrical tolerances.
• ISO 2768: Offers general tolerances for linear dimensions and angular dimensions, which can be utilized alongside ISO 13920:2023.
• ISO 14731: Addresses the responsibilities for welding coordination in manufacturing, supporting the overall quality assurance in welded structures.

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Why SN EN ISO 13920:2023 matters

Compliance with SN EN ISO 13920:2023 is pivotal for businesses seeking a competitive advantage in the manufacturing engineering sector. It fosters legal compliance, enhances market access, and builds customer trust through reliable product quality. By adhering to these standards, organizations can demonstrate their commitment to excellence and precision in welded constructions, ensuring they meet both functional and regulatory requirements. Explore training and purchase options below to further enhance your understanding and implementation of these standards.