Examinations at the material 1.6580
Treatment : quenched in oil
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
martensite
hardness : 540 - 550 HV 10
Treatment : quenched in oil
Magnification : 1000 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
martensite