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Malleable iron, like ductile iron, possesses considerable ductility and toughness because of its combination of nodular graphite and low-carbon metallic matrix. This article discusses melting practices such as batch cold melting and duplexing, and their control mechanisms. It schematically illustrates the microstructure of annealed ferritic malleable iron, which is characterized by microstructures consisting of uniformly dispersed fine particles of free carbon in a matrix of ferrite or tempered martensite. The article describes the digital solidification analysis technology, simulation technologies, and smart engineering for the production of malleable iron. It provides information on the applications of ferritic and pearlitic malleable irons.

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