Alloy Nodular Cast Iron Rolls

These rolls are characterized by spherical graphite. Its mechanical properties are similar to that of alloy indefinite chilled rolls except that its strength is higher than the latter. They can be produced by static

Chemical Element %

Brand C Si Mn Cr Ni Mo Mg

SG 1 3.00-3.60 1.00-2.50 0.40-1.00 0.20-0.60 ＜0.30 0.20-0.60 ≥0.04

SG 3 3.00-3.60 1.20-2.40 0.40-1.00 0.20-0.60 0.20-0.60 0.20-0.60 ≥0.04

SG 4 3.00-3.60 1.20-2.40 0.40-1.00 0.20-0.60 0.50-1.00 0.20-0.60 ≥0.04

SG 6 3.00-3.60 1.20-2.40 0.40-1.00 0.30-1.20 1.01-2.50 0.40-0.80 ≥0.04

SGD 1 3.00-3.60 0.40-1.20 0.20-1.00 0.20-0.60 0.20-0.60 ≥0.04

SGD 2 3.00-3.60 0.40-1.20 0.20-1.00 0.10-0.30 0.20-0.80 ≥0.04

Properties and Application

Brand Barrel Hardness(HS) Tensile Strength(Mpa) Bending Strength(Mpa) Application

SG 1 40-55 ≥300 500-700 Stick, wire, profiled bar cogging roll frame

SG 3 55-70 ≥300 500-700

SG 4 60-70 ≥300 600-800 Stick wire, profiled bar moderate and finishing mill frame, narrow steel strip finishing mill frame

SG 6 62-70 ≥320 600-800

SHD 1 58-70 ≥300 600-800

SHD 2 58-70 ≥300 600-800

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