different size of type V and type VI graphite nodules and some fine secondary graphite particles scattered uniformly
throughout the matrix (see fig. 3. & Table #1). Metallographic examination of the etched specimens revealed
pearlite- ferrite microstructure, which consists of fine lamellar pearlite and bulls-eye ferrite (see fig.4).
In addition, there are small amount of random fine shrink porosities also observed.
The microstructure is substantially free of massive carbides, excessive carbon flotation.
No other micro-constituents or abnormal features, which would be detrimental to engineering processing, were
observed.