Role of Calcium and Rare Earth in improving Ductile Iron quality

SNAM is one of the largest & well known Manufacture of FeSiMg alloys used in ductile iron. Here their team has made a small video on Role of Ca & Re for the foundrymen. As we know Re & Ca plays important role in the grades and the specifications of the FeSiMg ally. Hence the role , the part it plays in making of good quality Ductile iron is explained in details herewith.