High Chromium Iron Rolls is one type of high chromium centrifugal composite Rolls, the work layer of the rolls has good
resistance and the core have good toughness which is widely used on the front finishing mill stand of hot strip and plate mill.
Product Description
High Chromium Iron Rolls is one type of high chromium centrifugal composite Rolls, the worklayer produced by high chromium and high alloy material, whose microstructure is bainite and chrome carbides, the core of the rolls is filled with spheroidal graphite cast iron. So that the work layer of the rolls has good resistance and the core has good toughness. The rolls is widely used on the front finishing mill stand of hot strip and plate mill.
Chemical composition:
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Barrel Hardness(HSD) |
|
HiCr I |
2.30-3.30 |
0.30-1.00 |
0.50-1.20 |
≤ 0.10 |
≤0.05 |
12.0-15.0 |
0.70-1.70 |
0.70-1.50 |
60-75 |
|
HiCr II |
2.30-3.30 |
0.30-1.00 |
0.50-1.20 |
≤ 0.10 |
≤0.05 |
15.01-18.0 |
0.70-1.70 |
0.70-1.50 |
65-80 |
|
HiCr III |
2.30-3.30 |
0.30-1.00 |
0.50-1.20 |
≤ 0.10 |
≤0.05 |
18.01-22.0 |
0.70-1.70 |
1.51-3.00 |
75-90 |
Neck Hardness: 32-45 HSD
Tensile Strength: 350N/mm2 min
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