ISO 9606-5:2000

Overview

ISO 9606-5:2000 - Approval testing of welders - Fusion welding - Part 5: Titanium and titanium alloys, zirconium and zirconium alloys defines the requirements for certifying welders who perform fusion welding on titanium and zirconium materials. It specifies essential variables, test-piece geometry, welding processes, acceptance criteria and certification procedures for manual and partly mechanized fusion welding (excluding fully mechanized/automatic processes). The standard supports mutual recognition of welder approvals by examining bodies and provides the basis for issuing welder certificates.

Key Topics

• Scope and objective: Approval testing of welders for fusion welding of titanium, titanium alloys, zirconium and zirconium alloys.
• Covered welding processes: MIG (ISO 4063 code 131), TIG/GTAW (141), plasma arc (15) - other processes by agreement.
• Joint types and test pieces: Butt welds (BW) and fillet welds (FW) in plates and pipes; test-piece shapes and dimensions are specified for representative qualification.
• Essential variables: Welding process, joint type, material group (per CR 12187), consumables (filler metal and shielding/plasma gas), dimensions (plate/pipe thickness and diameters), and welding position.
• Material grouping: Approval on one material in a listed group (e.g., groups 51–54 or 61–62 per CR 12187) can cover all materials within that group; special provision if production is predominantly zirconium.
• Consumables and WPS: Filler metals and shielding gases must be compatible with parent metal and process and used according to pWPS/WPS (EN 288-2).
• Examination and testing: Visual, non‑destructive and destructive examinations are referenced through normative standards (radiographic, penetrant, bend, fracture, macro/micro inspections). Acceptance requirements and re-test rules are defined.
• Certification and validity: Procedures for issuing certificates, ranges of approval, re-tests and periods of validity are included.

Applications

Who uses ISO 9606-5:2000:

• Welding inspectors and examining bodies responsible for welder qualification.
• Employers and fabricators working with titanium and zirconium in aerospace, chemical processing, medical devices, nuclear and high‑performance industrial components.
• Welding engineers developing WPS/pWPS for titanium/zirconium fabrication. Practical uses:
• Establishing welder competence for production welding on titanium/zirconium.
• Defining acceptance criteria and test-piece selection for qualification tests.
• Ensuring consistent certification and mutual recognition across organizations and borders.

Related Standards

Relevant references cited in ISO 9606-5:2000:

• EN 287-1 / ISO 9606-1 (general welder approval principles)
• EN 288-2 (WPS/pWPS)
• EN ISO 4063 (welding process nomenclature)
• CR 12187 (material grouping for welding)
• Standards for NDT and destructive tests (EN 1435, EN 571‑1, EN 910, EN 1320, EN 1321).

Keywords: ISO 9606-5:2000, approval testing of welders, fusion welding, titanium welding, zirconium welding, welders certification, TIG, MIG, plasma, WPS.