NBN ISO 17927-2:2021

This document specifies acceptance criteria for fusion weldments on metallic components.
It is to be applied provided it is referenced or approved by the responsible engineering/design authority.
This document covers the following processes given in Table 1 and the material groups given in Table 2.
Table 1 — Fusion welding processes covered by this document
Process Process number (ISO 4063:2009)
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
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, cop-
per alloys)
F Nickel alloys, cobalt alloys.
NOTE Material groups according to ISO 24394.