There are a number of iron casting products that you can select depending on the application that you intend to use them for. Two common products made by Cast Iron Castings manufacturers are cast iron and compacted graphite iron.
Here are the facts to be considered when weighing compacted graphite iron vs. cast iron for any application.
Cast iron is an alloy containing about 2.2% silicon and 3.2% carbon. The carbon forms graphite flakes within the iron matrix during the cooling of molten cast iron, making up streets points within the cast iron that give it a notable tensile strength.
However, it’s easy for cracks to develop at these points if the compressive load exceeds its tensile strength. This makes cast iron more brittle and hence limited in possible applicability.
Ductile iron, which adds a copper-magnesium alloy to cast iron, was created to transform the graphite flakes into sort of perfect spheres, which now acted as crack arresters rather than stress raisers.
Compacted graphite iron castings (CGI) are a type of cast iron that have spherical graphite particles in a worm-like compacted shape. This offers significant advantage over the ductile or grey iron - it is twice as strong but can be produced at the same cost as ductile iron. Its thermal conductivity as well as tensile strength also compares favorably with its counterparts.
CGI can be used in a host of applications including manufacture of pumps and valves, rolling mills and foundries, mines and quarries, aerospace and automotive equipment among others.
Here are the facts to be considered when weighing compacted graphite iron vs. cast iron for any application.
Cast iron is an alloy containing about 2.2% silicon and 3.2% carbon. The carbon forms graphite flakes within the iron matrix during the cooling of molten cast iron, making up streets points within the cast iron that give it a notable tensile strength.
However, it’s easy for cracks to develop at these points if the compressive load exceeds its tensile strength. This makes cast iron more brittle and hence limited in possible applicability.
Ductile iron, which adds a copper-magnesium alloy to cast iron, was created to transform the graphite flakes into sort of perfect spheres, which now acted as crack arresters rather than stress raisers.
Compacted graphite iron castings (CGI) are a type of cast iron that have spherical graphite particles in a worm-like compacted shape. This offers significant advantage over the ductile or grey iron - it is twice as strong but can be produced at the same cost as ductile iron. Its thermal conductivity as well as tensile strength also compares favorably with its counterparts.
CGI can be used in a host of applications including manufacture of pumps and valves, rolling mills and foundries, mines and quarries, aerospace and automotive equipment among others.
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