Multi Serve Rolls Ltd. Supplies Accicular Spheroidal Graphite Cast Iron Rolls. Multi Serve Rolls Ltd. Supplies rolls for various industrial purposes. Accicular Spheroidal Graphite Cast Iron Rolls is alloyed with nickel and molybdenum to permit formation of an accicular structure in the as-cast condition. Accicular Spheroidal Graphite Cast Iron Rolls are most suitable for heavier section where added strength and depth of hardness are required. These sand cast rolls is employed for certain Special-purpose rolls, e.G. Pilger rolls. The spheroidal graphite rolls is produced by a small proportion of magnesium added to the melt as nickel-magnesium or Alternative alloy, or as pure magnesium. These rolls are much stronger than rolls of the clear-chill type and the gradual fall in hardness is an added advantage. It is Suitable for strip mills, bar billet mills, and are being increasingly used for other applications.
