Cast iron rolls
Pearlitic nodular
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Pearlitic nodular cast iron rolls
Description:
Pearlitic nodular cast iron rolls are obtained by adding alloy elements of Ni, Cr, Mo into the nodular cast iron and following special heat treatment, so pearlitic nodular cast iron rolls have high strength, good thermal properties and resistance to emergencies as well as small hardness decrease of working layer.
Physical properties & Application:
|
Material code |
Barrel hardness(HSD) |
Neck hardness (HSD) |
Tensile strength (Mpa) |
Application |
|
SGP I |
45-55 |
35-55 |
＞450 |
Steel bar, wire, narrow band crude rolling |
|
SGP II |
55-65 |
35-55 |
＞450 |
Steel bar, wire, narrow band crude rolling |
|
SGP III |
62-72 |
35-55 |
＞450 |
Steel bar, wire, finishing a narrow band |
Chemical analysis:
|
Material code |
C |
Si |
Mn |
Ni |
Cr |
Mo |
Mg |
|
SGP I |
3.00-3.40 |
1.50-1.90 |
0.40-0.80 |
1.50-2.00 |
0.20-0.60 |
0.20-0.60 |
≥0.04 |
|
SGP II |
3.00-3.40 |
1.30-1.90 |
0.40-0.80 |
2.01-2.50 |
0.20-0.80 |
0.20-0.60 |
≥0.04 |
|
SGP III |
3.00-3.40 |
1.20-1.90 |
0.40-0.80 |
2.51-3.00 |
0.20-1.20 |
0.20-0.60 |
≥0.04 |