The microstructure of DPIC has a gradual transition from a carbide-rich surface containing a small amount of graphite to a grey core.
The microstructure of indefinite chilled cast irons has a carbide-rich yet tough material.
S.G.B.I rolls has nodular graphite & carbide in an acicular (needle-like) bainitic matrix with increased carbide content & some martensite.
Pearlitic Cast Iron rolls are essentially an indefinite chill-type material. The microstructure constitutes nodular graphite and carbides in a pearlitic matrix.
The Alloyed steel base microstructure consists of ferrite, pearlite and even some bainite for the higher carbon grades.
