Austenitic steel X15CrNiSi20-12 with a thickness of 6mm,
two-sided TIG welding, testing at the production stage.
An indication in the defect area (Fig. 10) occurs in magneto-
gram m–H (Fig.12).Inmagnetogram m–H (Fig.11)onehalfof
the length of the joint is characterized by large values of the
magnetic index while in the other half the values are distinctly
smaller. Metallographic testing ofthestructure was conducted in
two sections of this joint. In the 50mm section a significant
amount of largely elongated delta ferrite was found in an inter-
dendritic configuration (Fig. 13). This indicates a considerable