ISO 17607-5:2023

Overview

ISO 17607-5:2023 - "Steel structures - Execution of structural steelwork - Part 5: Welding" defines the general requirements for welding when executing structural steelwork, either as in-situ structures or as manufactured components, in conjunction with ISO 17607-1. It standardizes expectations for welding plans, processes, qualifications, execution, inspection and documentation to ensure safety, quality and interchangeability for projects built without a governing national/regional code.

Key topics and requirements

• Welding plan and documentation: requirements for preparing and recording a welding plan (content and implementation) and documents required to claim conformity.
• Welding processes and consumables: classification and appropriate use of welding consumables (electrodes, wires, fluxes, shielding gases) and covered processes including stud welding.
• Qualification: qualification of welding procedures and of welding personnel (welders, welding operators) and roles for welding coordination.
• Joint preparation and execution: joint design, tack welding, fillet and butt welds, branch connections in hollow sections, slot/plug welds, temporary attachments, preheating and post-weld heat treatment.
• Special materials and cases: welding of improved atmospheric corrosion-resistant steels, dissimilar steels, and bridge orthotropic decks.
• Inspection, testing and acceptance: inspection after welding, non-destructive testing (NDT) methods, production tests, acceptance criteria including routine, seismic and fatigue considerations, and nonconformity assessment.
• Conformity and execution levels: requirements for declarations of conformity and annexed guidance on execution levels, welded joints in hollow sections, and selection of weld inspection classes.

Applications and practical value

• Ensures consistent, auditable welding quality across fabrication shops and construction sites.
• Reduces trade barriers by offering a common framework for projects lacking a national standard.
• Guides specification writers, engineers and contractors in preparing welding plans, selecting welding procedures and assessing inspection regimes.
• Supports quality assurance and compliance for structural steelwork used in buildings, bridges, industrial structures and prefabricated steel components.

Who uses this standard

• Structural engineers, fabricators and erectors
• Welding coordinators, welding supervisors and certified welders
• Quality managers, inspectors and NDT personnel
• Project owners, procurement teams and certification bodies

Related standards (select)

• ISO 17607-1 to ISO 17607-6 (series on structural steelwork execution)
• ISO 3834 (quality requirements for fusion welding)
• ISO 5817 (weld quality levels)
• ISO 9606-1 (welder qualification)
• ISO 14731 (welding coordination)
• ISO 9712 (NDT personnel certification)

Keywords: ISO 17607-5:2023, welding standard, structural steelwork, welding plan, welding qualification, NDT inspection, welding consumables, weld acceptance criteria.