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◆ SUMMARY
It is a kind of nodular cast iron roll with pearlitic matrix in its microstructure, obtained by adding alloy elements of Ni、Cr、Mo and using special heat treatment. It is shaped by Centrifugal Casting Machine, or by gravity casting. |
◆ CHARACTERISTICS
◇ High strength
◇ Good thermal stability
◇ Resistance to impact
◇ Small hardness gradient of the working layer
◆ APPLICATION
◇ Blooming mills
◇ Rougher and intermediate stands of bar, rod and section mills
◆ MECHANICAL PROPERTIES
|
Symbol |
Hardness (HS) |
Tensile strength (MPa) |
Bending strength (MPa) |
|
SGP1 |
40~55 |
≥350 |
800~1000 |
|
SGP2 |
50~65 |
||
|
SGP3 |
60~72 |
PEARLITIC NODULAR CAST IRON ROLLS
