AISI	American Iron and Steel Institute
AOD	Argon oxygen decarburization
ASTM	American Society for Testing and Materials
BSE	Back-scattered electrons
BSI	Back-scattered electron imaging
CE	Circular economy
EAF	Electric arc furnace
ECD	Equivalent circular diameter
EDS	Energy-dispersive spectroscopy
EOL	End-of-life
FE-SEM	Field emission scanning electron microscopy
GOST	Gosudarstvennii Obscesoiuznii Standard (Russian)
ICP-OES	Optical emission spectrometer with inductively coupled plasma
ISO	The International Organization for Standardization
LF	Ladle furnace
LN2	Liquid nitrogen
MD	Mahalanobis distance
NMI	Nonmetallic inclusion
OM	Optical microscopy
VOD	Vacuum oxygen decarburization
Z	Atomic number of a chemical element