Gray Iron castings
Gray iron is an engineering material that has been around for ages. Nowadays, its use may be more limited, but it can still outperform many other engineering materials in many ways.
Advantages of gray iron
With excellent castability and machinability, as well as great wear resistance and damping capacity, gray iron castings still have an important market share in many industries like mining, aluminum transformation and coal power plants, among other.
Microstructure and mechanical properties of gray iron
| Gray iron has an easily recognizable microstructure, with a series of graphite flakes in a silicon-iron matrix.
This microstructure is the source of all the qualities of gray iron castings, but it also makes for a brittle material that cannot sustain elongation. When you need deformation or higher loads, ductile iron castings become a better choice. Saguenay Foundry's gray irons have a range of physical properties, with traction results from 25,000 psi to 50,000 psi. Alloying elements can also be added to obtain a variety of characteristics. Our engineers will be pleased to advise you about what will be the best choice for your requirements. |
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Microstructure of Gray iron under a 100X microscope |
Among the particular alloying elements possible for gray iron, some of them makes it the choice material for heat resisting application. This can be particularly useful for castings like aluminum siphons, where molten metal must pass through the part. Our team will help you decide what fits best your particular application.
Patternless gray iron parts
Ideal for prototypes and short production runs, Nopatech™ saves time and money on fabrication of one-time iron parts. Cast iron parts done with this technology can me as big as 96'' in outside diameter or weight as much as 15,000 lbs.
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