Ductile Iron Rolls

We are offering our customers a wide range of Ductile Iron Rolls.
Applications: For roughing or finishing stands rolling mill of section mill, wire and rods, bars mills, finishing stands and back up rolls of strip and narrow strip mills,
Mechanical Property:
Mechanical Property Centrifugal Castings Static Castings
Hardness of Body HSD50-80 HSD40-75
Hardness of Neck HSD35-48 HSD-32-55
Tensile Strength of Core >450MPa >300Mpa

Chemical Analysis:
Grade Hardness
(HSD) C Si Mn Ni Cr Mo Mg P S
SGI 40-55 3.2-3.7 1.0-2.5 0.5-1.0 0.2-0.6 0.2-0.6 >0.04 <0.2 <0.03
SGII 55-70 3.2-3.7 1.2-205 0.5-1.0 0.2-0.6 0.2-0.6 >0.04 <0.2 <0.03
SGIV 48-70 3.2-3.7 1.0-2.5 0.5-1.0 0.5-1.0 0.2-0.6 0.2-0.6 >0.04 <0.2 <0.03
SGV 48-70 3.2-3.7 1.0-2.5 0.5-1.0 1.0-3.0 0.3-1.2 0.2-0.8 >0.04 <0.2 <0.03
SGVI 42-52 2.9-3.5 1.5-2.4 0.4-0.8 1.0-2.5 0.1-0.5 0.4-0.8 >0.04 <0.2 <0.03
SGVII 55-75 2.9-3.5 1.5-2.4 0.4-0.8 2.5-.5 0.1-0.5 0.4-1.0 >0.04 <0.2 <0.03