Unit price will be decided by engineering drawing.
Adding relatively more Chromium alloy elements in its outer layer brings a special carbide structure. Compared with normal roll, it has higher wear resistance, hardness, strength, and campaign rolling tonnage. The core part adopts alloy spheroidal graphite(SGP) to ensure the roll's integral strength.
The combination of these materials and structures ensures a longer service life and a more stable performance of the roll in the rolling process. In addition, the chromium alloy outer layer also has good corrosion resistance, which can effectively prevent rust and reduce maintenance costs.
Microstructure of HiCr
Table 7 HiCr Material Composition and Performance Properties
| Grade |
C |
Si |
Mn |
Cr |
Ni |
Mo |
V |
Hardness
(HS) |
Tensile Strength
(Mpa) |
| HiCr I |
2.30/3.30 |
0.30/1.00 |
0.50/1.20 |
12.0/15.0 |
0.70/1.70 |
0.70/1.50 |
0.00/0.60 |
65/80 |
>230 |
| HiCr II |
2.30/3.30 |
0.30/1.00 |
0.50/1.20 |
15.0/18.0 |
0.70/1.70 |
0.70/1.50 |
0.00/0.60 |
70/85 |
>230 |
| HiCr III |
2.30/3.30 |
0.30/1.00 |
0.50/1.20 |
18.0/22.0 |
0.70/1.70 |
1.51/3.00 |
0.00/0.60 |
75/85 |
>230 |
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