ITEM NAME : PUMP CASTINGS TYPE /GRADE : GREY IRON CASTING GREY IRON CASTING : Grey cast iron is characterised by its graphitic microstructure, which causes fractures of the material to have a grey appearance. It is the most commonly used cast iron and the most widely used cast material based on weight. Most cast irons have a chemical composition of 2.5â??4.0% carbon, 1â??3% silicon, and the remainder iron
