Shiva Chill Rolls Private Limited offers Spheroidal Graphite Acicular Rolls. Shiva Chill Rolls Private Limited is an ISO 9001:2000 accredited company. Spheroidal Graphite Acicular Rolls are most suitable for heavier section where added strength and depth of hardness are required. Spheroidal Graphite Acicular Rolls is employed for certain special-purpose rolls, e.G. Pilger rolls. It is preferred, because of its wear-resisting qualities. To this end, the iron is alloyed with nickel and molybdenum, to permit formation of an accicular structure in the as-cast condition.