Bainitic Spheroidal Graphite RollsAlloy elements of Ni,Mn,Cr,Mo etc.are added to bainitic spheroidal graphite rolls for obtaining acicular(bainite-martensite)matrix in its microstructure of these rolls.Its strength and toughnes is higher than Perlitic Nodular Cast Iron Rolls,Website:http://www.kdroll.com,wearability is also better than latter.These rolls can be produced by static casting or centrifugal casting.Chemical Composition %SymbolCSiMnCrNiMoSGAⅠ2.90-3.601.20-2.200.20-0.800.20-1.003.01-3.500.50-1.00SGAⅡ2.90-3.601.00-2.000.20-0.800.30-1.503.51-4.500.50-1.00Prosperities&ApplicationSymbolHardnessHSTensile StrengthMPaBending StrengthMPaApplicationSGAⅠ55-78≥350600-800Finishing stands of small section mills, bar,rod and hot narrow strip mills,finishing stands of high speed wire millsSGAⅡ60-80≥350600-800