The manufacture of components in cast iron is a vast field in the machinery industry. These materials are iron alloys with high carbon content, labelled "cast" because of the manufacturing process used to make them. The high carbon content allows for the melting temperatures of these materials to be less than that those of steel and helps achieve a greater fluidity of the molten liquid, allowing casting into thinner and more complexly shaped tools. A further benefit of the lower melting temperature is the less aggressive interaction between the tool and the molten metal, allowing for a better cast finish.


Its low cost and excellent castability have driven the extensive development of applications for these alloys which include engine blocks, gears, valve bodies, car parts and many other components for machines.

Our grey cast iron TVH® TV25 is one of the most popular ferrous materials and usually contains more than 2% carbon and over 1% silica, as well as manganese, phosphorus and sulphur. One distinctive feature of grey cast iron is that the carbon clumps into graphite formations known as "flakes" giving the components machined from this material, their familiar grey colour.

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