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Treatment : stress relief annealed
Magnification : 100 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
surface decarburization 0,23 mm deep
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Treatment : stress relief annealed
Magnification : 100 : 1
Etching medium : 3 % alcoholic nitric acid
Sampling / Specification : transverse
Testing result :
ca. 30 % ferrite ; 70 % bainite
light incipient spheroidization of the microstructure
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