Examinations at the material 1.6580
Treatment : cooled at air (in
5 minutes to < 200° C)
Magnification : 500 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
lower bainite and some martensite
hardness : 500 - 510 HV 10
Treatment : cooled at air (in 5 minutes
to < 200° C)
Magnification : 1000 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
lower bainite and some martensite