Overview
EN ISO 9606-5:2000 - Approval testing of welders - Fusion welding - Part 5 covers the approval (qualification) testing of individual welders who perform fusion welding of titanium and titanium alloys, and zirconium and zirconium alloys. The standard specifies the essential requirements for welder performance assessment, including ranges of approval, test conditions, acceptance requirements and certification. It is intended to support mutual recognition of welder approvals between examining bodies.
Key topics and requirements
- Scope of qualification: Defines the material groups (titanium and zirconium families) and the fusion welding context for which welder performance is assessed.
- Essential requirements: Sets out the competencies and criteria that a welder must demonstrate to gain approval.
- Test conditions: Describes the controlled conditions under which a welder’s practical test is conducted (e.g., welding method, joint type, positions) to ensure repeatable assessment.
- Acceptance criteria: Establishes pass/fail criteria based on visual and destructive/non-destructive examination of test welds.
- Ranges of approval and certification: Explains how the welder’s qualification can be extended (or limited) to other thicknesses, joint types or welding positions and how certification is issued and recognized.
- Mutual recognition: Provides a basis for different examining bodies to accept each other’s approvals, promoting consistency across organizations and borders.
Applications
- Ensures consistent, reliable qualification of welders working with titanium and zirconium, materials commonly used where high strength, corrosion resistance or low-weight are required.
- Applicable in industries such as:
- Aerospace (airframe and engine components)
- Chemical and petrochemical (corrosion-resistant equipment)
- Nuclear (zirconium alloys for certain reactor components)
- Medical devices (titanium implants and instruments)
- Specialized manufacturing and fabrication involving exotic alloys
- Supports procurement, quality assurance and regulatory compliance by providing documented welder competency.
Who should use this standard
- Welding engineers, welding coordinators and fabricators working with titanium/zirconium
- Certification and examining bodies responsible for welder approval
- Quality assurance/inspection personnel and project managers specifying welder competence
- Regulators and clients requiring traceable welder qualifications
Related standards
- Other parts of the ISO 9606 series (welder approval for other base metals)
- Complementary welding procedure and material standards used alongside welder qualification requirements
Keywords: EN ISO 9606-5:2000, approval testing of welders, fusion welding, titanium, titanium alloys, zirconium, zirconium alloys, welder qualification, certification, test conditions, acceptance requirements.
