Material number 1.2767
Treatment : spheroidised
Magnification : 100 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
no surface decarburization
no complete decarburization
and grain boundary oxidation 0,02 mm deep
Treatment : spheroidised
Magnification : 200 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
no surface decarburization
no complete decarburization
and grain boundary oxidation 0,02 mm deep