◆ SUMMARY
It is a kind of cast iron roll with free graphite in the matrix of its working layer, and made by gravity casting.
◆ CHARACTERISTICS
◇ High hardness and excellent wearability.
◇ Microstructure of spherical graphite.
◇ Higher tensile strength than alloy indefinite chilled roll.
◆ MECHANICAL PROPERTIES & APPLICATION
|
Symbol |
Hardness (HS) |
Tensile strength (MPa) |
Bending strength (MPa) |
Application |
|
SG1 |
40~55 |
≥300 |
500~700 |
Rougher of bar, wire and section mills. |
|
SG2 |
50~70 |
≥300 |
500~700 |
|
|
SG3 |
55~70 |
≥300 |
500~700 |
|
|
SG4 |
55~70 |
≥300 |
500~700 |
|
|
SG5 |
60~70 |
≥300 |
600~800 |
Finish stands of small section mills and narrow hot strip mills. |
|
SG6 |
62~70 |
≥320 |
600~800 |
|
|
SHD1 |
58~70 |
≥300 |
600~800 |
Folding sheet mill |
|
SGD2 |
58~70 |
≥300 |
600~800 |
ALLOY NODULAR CAST IRON ROLLS
