Spheroidal Graphite (Nodular) Cast Iron Rolls

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S.G. Iron or ductile iron is considered as one of the most versatile roll material now days. It is produced by a small proposition of magnesium added to the melt as nickel-magnesium or alternative alloy, or pure magnesium. In S.G. Iron Rolls, the free carbon takes the shape of spheroids or nodules, thereby eliminating the notch effect to flake graphite and improving upon the mechanical properties of cast iron.

These Rolls are available in a wide range of hardness & composition for a variety of application. The matrix structure varies from Ferrito-Pearlitic, Pearlitic to Bainitic & Martensitic together with different carbide contents and graphite in the from of spheroids/nodules. Chemical composition and structure are chosen to suit specific application.

Application:These Rolls are used in roughing, intermediate and finishing stands of structural, wire rod and strip mills.