NBN ISO 17927-1:2021

This document specifies the requirements for fusion welding of aerospace hardware. It is to be used in
conjunction with the design/engineering authority’s design documents or their accepted data.
This document covers the processes given in Table 1 and material groups given in Table 2.
Table 1 — Fusion welding processes covered by this document
Process Process number (ISO 4063)
Oxyfuel welding 31
Gas-shielded arc welding with non-consumable tungsten electrode,
Gas tungsten arc welding 14
Plasma arc welding 15
Electron beam welding 51
Laser welding, Laser beam welding 52
Table 2 — Material groups covered by this document (see ISO 24394:2018, 4.5)
Material group Description
A Unalloyed steel, low-alloyed steels, high-alloyed ferritic steels
B Austenitic, martensitic and precipitation hardening steels
C Titanium and titanium alloys, niobium, zirconium and other reactive metals
D Aluminium and magnesium alloys
E Materials that do not conform to other material groups
(e.g. molybdenum, tungsten, copper alloys)
F Nickel alloys, cobalt alloys.