ISO 24394-2023 PDF

Full title and description

Welding for aerospace applications — Qualification test for welders and welding operators — Fusion welding of metallic components. This International Standard specifies the qualification test requirements used to assess welders and welding operators performing fusion welding on metallic parts intended for aerospace production and repair.

Abstract

This document sets out the procedures, test specimens, acceptance criteria and administrative requirements for the qualification test of welders and welding operators for fusion welding of metallic materials in aerospace applications. It clarifies that successful completion of the test is a precondition for qualification in new production and repair work, while operators of welding equipment are excluded from mandatory qualification by this document.

General information

• Status: Published.
• Publication date: September 2023 (Edition 3, published September 2023; national publication dates vary by body).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.160.01 — Welding, brazing and soldering in general.
• Edition / version: Edition 3 (2023).
• Number of pages: 34 pages (official ISO edition).

Scope

The standard specifies requirements for the qualification of welders and welding operators performing fusion welding of metallic components for aerospace applications. It defines test assemblies, welding processes covered, acceptance criteria for test pieces, and the administrative and record-keeping provisions necessary to support qualification for both production and repair activities in the aerospace sector. The document does not require qualification of personnel who only operate welding equipment.

Key topics and requirements

• Definition of the qualification test structure for welders and welding operators (test assemblies, positions and joint types).
• Specified fusion welding processes and material group considerations relevant to aerospace metallic components.
• Acceptance criteria for weld quality, non-destructive and destructive examination requirements, and relevant test performance limits.
• Administrative rules: test administration, examiner roles, certificates and record retention.
• Re-test, revalidation and scope/limitations of qualification (what the qualification covers and its range of validity).

Typical use and users

Used by aerospace manufacturers, MRO and repair organizations, training and certification bodies, quality and compliance managers, welding instructors and individual welders seeking qualification for aerospace work. The standard is applied where traceable, standardized welder qualification is required to meet contractual, regulatory or customer safety requirements.

Related standards

This edition (2023) replaces ISO 24394:2018 and is aligned with the body of welding qualification standards (for example, the ISO 9606 series for welder qualification). National and regional implementations (EN, BS, DIN, UNI, etc.) may publish harmonized versions or translations.

Keywords

aerospace welding; welder qualification; welding operator; fusion welding; test assembly; acceptance criteria; non-destructive examination; ISO 24394; welding certification.

FAQ

Q: What is this standard?

A: ISO 24394:2023 is an International Standard that specifies the qualification test requirements for welders and welding operators performing fusion welding on metallic components specifically for aerospace applications.

Q: What does it cover?

A: It covers the structure and content of the qualification test (test pieces, joint types, welding positions), acceptance criteria (including NDE and destructive testing where required), administrative procedures for testing and certification, and rules for re-test and revalidation. The standard applies to production and repair but excludes qualification of equipment-only operators.

Q: Who typically uses it?

A: Aerospace OEMs and suppliers, repair (MRO) organizations, certification/examination bodies, training centers, quality managers, and individual welders seeking recognized qualification to perform fusion welding in aerospace contexts.

Q: Is it current or superseded?

A: Current — the 2023 edition (Edition 3, published September 2023) is the active edition and it replaces ISO 24394:2018.

Q: Is it part of a series?

A: It sits within the family of welding qualification standards (ICS 25.160.01). Related series include ISO 9606 (qualification testing of welders) and other ISO/TC 44 deliverables addressing welding qualification and procedures; national/adopted versions may be published by standards bodies.

Q: What are the key keywords?

A: Aerospace welding, welder qualification, welding operator, fusion welding, test assemblies, acceptance criteria, NDE, certification.