Shiva Chill Rolls Private Limited manufactures Spheroidal Graphite Cast Iron Rolls. Shiva Chill Rolls Private Limited is an ISO 9001:2000 registered company. Spheroidal Graphite Cast Iron Rolls is produced by a small proportion of magnesium added to the melt as nickel-magnesium or alternative alloy, or as pure magnesium. Spheroidal Graphite Cast Iron Rolls are so superior in wear resistance to that of cast steel rolls that they are specially adapted for roughing and intermediate plate mills and rod or bar mill roughers. As a result of the spheroidal form of the graphite, these rolls are much stronger than rolls of the clear-chill type and the gradual fall in hardness is an added advantage. As such, these rolls are particularly suitable for skelp and strip mills, also bar billet mills, and are being increasingly used for other applications.
