Properties- good mechanical strength, High resistance to wear and corrosion, self lubricating property, greater resistance to high temperatures, retain tension to give a good gas seal, compatible with liner material.
Materials used.
1. Ordinary grey cast iron- good wear resistance and self lubricating property as lot of graphite in the structure, however graphite reduces strength.
2. Alloyed cast iron Mo,Ni,Co,Vn are alloyed with iron to give finer grained structure and graphite formation
3. Spheroidal graphite cast iron- good wear resistance but not as self lubricating as the ordinary grey cast iron.
Materials used.
1. Ordinary grey cast iron- good wear resistance and self lubricating property as lot of graphite in the structure, however graphite reduces strength.
2. Alloyed cast iron Mo,Ni,Co,Vn are alloyed with iron to give finer grained structure and graphite formation
3. Spheroidal graphite cast iron- good wear resistance but not as self lubricating as the ordinary grey cast iron.
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