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Malleable cast iron


For many years malleable cast iron has been a reliable type of cast iron with a low silicon content. In the state of casting the whole amount of carbon is bound as carbide to the iron. The breaking structure is white and the material is brittle. This is called “malleable rough cast”.

Malleable cast iron is given its final qualities by heat treatment. If the material is completely decarburized, we speak of “white malleable cast iron”, whereas it is called ‚black malleable cast iron’ if a certain amount of carbon remains in the material.

The material’s mechanical qualities are better than those of standard grey cast iron. White malleable cast iron is also well weldable.

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