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Welders and welding operator for aerospace applications - ISO 24394


Welding processes

111 - Manual metal arc welding

12 - Submerged arc welding

13 - Gas-shielded metal arc welding (MAG- and TIG welding)

141 - TIG welding with solid filler material (wire/rod)

15 - Plasma arc welding

31 - Oxy-fuel gas welding

51 - Electron beam welding

52 - Laser beam welding


Material groups

Material group A: Unalloyed steel, low-alloyed steels, high-alloyed ferritic steels

Material group B: Austenitic, martensitic and precipitation hardening steels.

Material group C: Titanium and titanium alloys, niobium, zirconium and other reactive metals.

Material group D: Aluminium and magnesium alloys.

Material group E: Materials that do not conform to other material groups (e.g. molybdenum, tungsten, copper alloys).

Material group F: Nickel alloys, cobalt alloys.


Test pieces

Tests can be taken on six specified test pieces:

-        TP1 (Butt weld on sheet/plate, see „P BW“)

-        TP2 (Fillet weld on sheet/plate, see „P FW“)

-        TP3 (Butt weld on tube, see „T BW“)

-        TP4 (Tube to sheet/plate, see „T FW“)

-        TP5 (Structural tube framework)

-        TP6 (Fill weld on casting)

Welding method, welding position, material and wall thickness are generally freely selectable. In addition to the given test pieces, there is the option to carry out special tests (marked with the tag "X" at the end of the test designation, e.g. when using backing, for cladding welds or dissimilar joints).


Test method

Depending on the test piece, the following methods are used (simplified):

-        Visual inspection and dimensional examination (all TP)

-        fluorescent penetrant testing (all TP)

-        macro‑sections (TP2, TP4, TP5)

-        Radiographic examination (TP1, TP3, TP6)


Conditions required
Documented evidence of satisfactory vision and colour vision.


Test of job knowledge

A test of job knowledge is designated and must be taken in the form of a written or oral test.


Validity of the qualification

The initial welder or welding operator qualification test certificate is valid for a period of 2 years, provided that the welder or the welding operator is regularly working with the welding process for which the welder or welding operator is qualified. An interruption of 6 months is allowed.