ISO 5817:2023 Welding Standards and Their Importance

ISO 5817:2023 welding standardsISO 5817 2023 welding standardsISO 5817:2023 welding requirements

The ISO 5817:2023 welding standards are crucial for organizations aiming to enhance the quality of fusion-welded joints in steel, nickel, titanium, and their alloys. This guide provides insights into implementing these standards effectively.

SN EN ISO 5817:2023

Schweissen - Schmelzschweissverbindungen an Stahl, Nickel, Titan und deren Legierungen (ohne Strahlschweissen) - Bewertungsgruppen von Unregelmässigkeiten (ISO 5817:2023)

Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections (ISO 5817:2023)

SWISSMEM

This document specifies quality levels of imperfections in fusion-welded joints (except for beam welding) in all types of steel, nickel, titanium and their alloys. It applies to material thickness ≥ 0,5 mm. It covers fully penetrated butt welds and all fillet welds. Its principles can also be applied to partial-penetration butt welds. Quality levels for beam-welded joints in steel are presented in ISO 13919-1. Three quality levels are given in order to permit application to a wide range of welded fabrication. They are designated by symbols B, C and D. Quality level B corresponds to the highest requirement on the finished weld. Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given in Annex B. The quality levels refer to production and good workmanship. This document is applicable to: a)       non-alloy and alloy steels; b)       nickel and nickel alloys; c)        titanium and titanium alloys; d)       manual, mechanized and automatic welding; e)       all welding positions; f)         all types of welds, e.g. butt welds, fillet welds and branch connections; g)       the following welding processes and their sub-processes, as defined in ISO 4063: —     11 metal arc welding without gas protection; —     12 submerged arc welding; —     13 gas-shielded metal arc welding; —     14 gas-shielded arc welding with non-consumable tungsten electrode; —     15 plasma arc welding; —     31 oxyfuel gas welding (for steel only). Metallurgical aspects, such as grain size and hardness, are not covered by this document.

Publikation: 2023-03-0140 SeitenICS: 25.160.40

Why implement SN EN ISO 5817:2023 now

Implementing SN EN ISO 5817:2023 is critical for manufacturing engineering organizations to meet evolving customer expectations and regulatory requirements. The increasing focus on quality assurance and safety in production processes often serves as a catalyst for adopting these standards. Common triggers include customer demands for higher quality, regulatory pressure to comply with safety standards, and internal goals aimed at elevating product quality. By aligning with ISO 5817:2023, organizations can improve their competitive edge, reduce rework and defects, and ultimately enhance customer satisfaction.

Prerequisites and readiness check

Before diving into the implementation of SN EN ISO 5817:2023, organizations should ensure they have the following foundational elements in place:

  • Management commitment: Leadership should prioritize quality and support the implementation process.
  • Resource allocation: Allocate necessary resources, including time, personnel, and budget, for the transition.
  • Current process documentation: Have existing processes documented to compare against the new standards.
  • Training programs: Develop training initiatives to educate staff on the standards and their implications.

Step 1: Gap analysis

Conducting a gap analysis is essential to understand how current practices align with SN EN ISO 5817:2023. Begin by gathering relevant documentation about existing welding processes and quality control measures. Next, compare these against the requirements outlined in the standard. Typical findings may include areas lacking in defect identification, insufficient training, or inadequate quality control measures. Tools like checklists and audits can facilitate this analysis, helping to pinpoint specific gaps that need addressing for compliance.

Step 2: Design and documentation

Designing a management system that aligns with SN EN ISO 5817:2023 requires meticulous documentation. Key components include:

  • Scope statement: Define the boundaries of the quality management system.
  • Policy: Establish a clear quality policy that reflects organizational goals.
  • Objectives: Set measurable quality objectives that align with ISO requirements.
  • Procedures: Document procedures for identifying and managing welding imperfections as per the standards.
  • Records: Maintain records of compliance with quality levels to facilitate audits and continuous improvement. Each of these components should tie back to specific clauses within SN EN ISO 5817:2023 to ensure thorough alignment.

Step 3: Implementation and training

The successful rollout of the ISO 5817:2023 standards hinges on effective change management and comprehensive training. Begin by communicating the changes to all relevant stakeholders, ensuring clarity on the importance of the new standards. Conduct training sessions to equip staff with the necessary skills to recognize and manage welding defects. Common pitfalls during this phase include resistance to change and inadequate training resources, which can undermine the implementation effort. Counter these challenges by fostering an inclusive culture that values quality and continuous improvement.

Step 4: Internal audit and certification

Internal audits serve as a cornerstone for ensuring compliance with ISO 5817:2023. These audits should be planned and structured to assess both documentation and implementation. The certification audit typically occurs in two stages:

  1. Stage 1: A documentation review to ensure all required elements are in place and compliant with the standard.
  2. Stage 2: An implementation assessment to verify that processes are being executed as planned and that quality levels are maintained. Regular internal audits help organizations identify areas for improvement and maintain adherence to the standards.

Common pitfalls

When implementing SN EN ISO 5817:2023, organizations often encounter the following challenges:

  • Lack of management support: Ensure leadership is actively involved in the quality initiative.
  • Inadequate training: Build comprehensive training programs to equip staff with necessary skills.
  • Poor documentation: Maintain thorough and accurate records to support compliance.
  • Resistance to change: Foster an organizational culture that embraces quality improvements.
  • Neglecting ongoing audits: Schedule regular audits to continuously monitor compliance.

Last updated: April 15, 2026