Cast iron is a material that contains high carbon/iron alloys along with silicon. Gray cast iron, malleable cast iron, ductile, and white cast iron are fewer examples. Exporters of CI castings use these CI materials to form or fabricate different components and objects. Gray cast iron contains 2 to 4% carbon and 1 to 3% silicon. These are the cheaper engineering metals. Why it is known as gray CI material? It is due to the presence of graphite flakes that make cast iron grayish or dull in color.
Gray Iron Castings
Usually gray iron castings are alloyed for enhanced corrosion resistance and durability. As compared to other CI materials, gray iron castings are about twice as resistant to water as steel due to the bonding of rust products by the graphite.
Manufacturers usually produce weaponry, stoves, tools, statuary, common household goods, and building materials from gray cast iron. These are machined easily and used for controlling or damping vibration in vast range of applications. These castings are tested for their quality and manufactured in high volume to cater global requirements.
White Cast Iron castings
These castings have all of their carbon in the iron carbide form. These are known for their hardness and brittleness. Presence of silicon is low when compared to gray castings and this is why the color of these castings is white and not gray.
White cast iron is tough to shape and cut in different designs and especially in larger sections. These castings are extensively used by mining industry due to its wear resistant properties.
Malleable CI Castings
Manufacturers and suppliers of CI castings produce these types of castings under high temperature heat treatment of white irons of suitable composition. Applications of malleable CI materials are:
- Heavy duty machines- paper, printing, etc.
- Automotive parts- cylinder blocks, gearbox cases, cylinder head, etc.
- Gas pipes and more
Out of all of these products, exporters of CI castings are producing more gray iron castings due to heavy demand in the domestic and overseas market.
Rainbow castings manufacturers are global suppliers and exporters of CI castings. You can contact the experts and get quote for your query. They also welcome bulk orders. To share your thoughts with us regarding this post, you can make comment below.
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