Cast iron containing graphite in a spherulitic form. Also called nodular iron, spherulitic iron, or S.G. Iron.
A type of iron used for water mains that generally has the properties of high strength, ductility, and resistance to impact. Back to the top
A cast iron that has been treated in the liquid state so as to cause substantially all of its graphitic carbon to occur as spheroids or nodules in the as-cast condition.