Shrinkage of Materials
(Differene of Volume of the Moulde Compared with Volume of Casting after cooling, in Per cent)
Material Shrinkage Material Shrinkage
Grey cast iron 1% Brass 1.5%
Cast steel 2% Copper 1%
Malleable iron 1.6% Tin, lead 1%
Bronze 1.5% Zinc alloys 1.5%
Gun metal 1.5% Al, Mg alloys 1.25%