Very strong surface decarburization - 1.7102
Treatment : spheroidised
Magnification : 50 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
strong surface decarburization 0,65 mm deep
(almost complete decarburised) and strong scaled
surface
Treatment : spheroidised
Magnification : 100 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
strong surface decarburization 0,65 mm deep
(almost complete decarburised) and strong scaled
surface