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SHIJIAZHUANG JIZHONG MALLEABLE IRON CO.,LTD
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What Is malleable iron?

Malleable iron is cast as white iron, the structure being a metastable carbide in a pearlitic matrix. Through an annealing heat treatment, the brittle structure as first cast is transformed into the malleable form. Carbon agglomerates into small roughly spherical aggregates of graphite leaving a matrix of ferrite or pearlite according to the exact heat treatment used. Three basic types of malleable iron are recognized within the casting industry: blackheart malleable iron, whiteheart malleable iron and pearlitic malleable iron.
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  • Malleable Iron Zone, Shijiazhuang City, Hebei Province
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