Material number 1.2201
Treatment : spheroidised
Magnification : 100 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
surface decarburization 0,25 mm deep
bright, not so strong etchenable border
Treatment : spheroidised
Magnification : 100 : 1
Etching medium : sulfurous acid - deep etching
Sampling / Specification : longitudinal / SEP1615
Testing result :
primary carbide distribution : figure A 2