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S.G. Accicular Rolls

S.G. Accicular Rolls are widely used for hot rolling applications in different type of intermediate, prefinishing and finishing group stands. The material consists of nodular graphite and carbides in martensitic and bainitic matrix. S.G. Accicular Rolls are more wear resistant than nodular pearlitic rolls. Depending on the primary requirements there is variety of standard and also more alloyed grades used considering rolling mill operational conditions and specially wear resistance which is increased with hardness drop if compared with standard grades considering the type of groove & caliber.


Applications

  • It is suitable for heavier passes and severe stress in intermediate stands and finishing stands of rolling mills.

Chemical Composition

HARDNESS C MN SI S P NI CR MO
60-65 3.10-3.80 0.45-1.45 1.40-2.00 0.020 MAX 0.050 MAX 1.60-2.60 0.70-1.60 0.45-0.80
65-70 3.10- 3.80 0.50-1.50 1.30-1.60 0.020 MAX 0.050 MAX 2.20-3.00 0.70-1.60 0.60-1.00
70-75 3.25-4.00 0.60-1.60 1.25-1.50 0.020 MAX 0.050 MAX 2.80-3.50 0.80-1.90 0.65-1.20