Cast iron rolls
High chrome
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High chrome cast iron centrifugal rolls
Description:
The working layer of High chrome cast iron centrifugal rolls contains large amount of separated high hardness carbide,and is covered by oxide film which is highly against the oxidation. To be cautious, the thermal conductivity of working layer is quite low, in case to decrease the thermal stress, it is necessary to cool it by water. However, during the working procession, the rolls perform better wear resistance and anti-accidents.
Physical properties & Application:
|
Material code |
Barrel hardness(HSD) |
Neck hardness (HSD) |
Tensile strength (Mpa) |
Application |
|
HCrl I |
60-70 |
32-45 |
＞350 |
Wire rod finishing, plate, finishing with a coarse |
|
HCrl II |
65-80 |
32-45 |
＞350 |
Wire rod finishing, plate ,finishing with a coarse |
|
HCrl III |
70-90 |
32-45 |
＞350 |
Wire rod, cold and hot strip finishing, flat |
Chemical analysis:
|
Material code |
C |
Si |
Mn |
Ni |
Cr |
Mo |
V |
|
HCrl I |
3.00-3.30 |
0.30-1.00 |
0.50-1.20 |
0.70-1.70 |
12.00-15.00 |
0.70-1.50 |
0.10-0.40 |
|
HCrl II |
3.00-3.30 |
0.30-1.00 |
0.50-1.20 |
0.70-1.70 |
15.01-18.00 |
0.70-1.50 |
0.20-0.40 |
|
HCrl III |
3.00-3.30 |
0.30-1.00 |
0.50-1.20 |
0.70-1.70 |
18.01-22.00 |
1.50-3.00 |
0.20-0.40 |