Spheroidal Graphitic Bainitic Cast Iron

S.G.B.I rolls has nodular graphite & carbide in an acicular (needle-like) bainitic matrix with increased carbide content & some martensite.

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Spheroidal Graphitic Bainitic Cast Iron

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Spheroidal Graphite (SG) Cast Iron Rolls

S.G.P.I Rolls - Chemical Composition

S.G.B.I rolls has nodular graphite & carbide in an acicular (needle-like) bainitic matrix with increased carbide content & some martensite. This material has superior wear resistance & an excellent surface finish ideal for intermediate and finishing application for rod & bars, section and flat
HARDNESS (SHORE 'C') C% SI% MN% P% S% CR% NI% MO% MG%
55-60 3.20-3.40 1.40-1.80 0.50-0.60 <0.060 <0.020 0.30-0.45 2.40-3.00 0.50-0.80 0.045-0.070
60-65 3.30-3.50 1.30-1.70 0.50-0.70 <0.060 <0.020 0.35-0.50 2.50-3.20 0.50-0.80 0.045-0.070
65-70 3.30-3.50 1.20-1.60 0.50-0.75 <0.060 <0.020 0.40-0.60 2.50-3.20 0.50-0.80 0.045-0.070
70-75 3.35-3.50 1.10-1.50 0.50-0.75 <0.060 <0.020 0.50-0.70 2.50-3.20 0.50-0.80 0.045-0.070