- Material: Ni Hard Gr.2
- Weight: 3200 Kg.

The materials of these rolls belong to the generic tool steel family and are generally alloyed with cr, mo, v & w. The presence of finely dispersed mc type primarily carbides along with m6c, m2c & m7c3 type carbides in a tempered martensitic matrix provides the working layer with a highly wear resistant surface.

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The sg iron rolls are generally chill cast with the working surface having eutectic cementite and free graphite in spheroidal morphology. The addition of appropriate alloying elements in carefully adjusted combinations are practiced to get a wide range of matrix microstructure varying from fine pearlite to bainite or acicular martensite depending on the area of application of the roll.