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Texture profile
The carbon content is usually in the range of 1.2-1.7%, component contains Cr, Ni, Mo and other alloying elements, roll with a special heat treatment process, compared with the conventional alloy steel roll has good wear resistance, thermal crack resistance, roll using layer hardness drop is small.
Main application
- Wok roll for hot strip mill, plate mill, vertical roller mill Steckel.
- Work rolls for 4Hi roughing hot strip mill.
- Section mill roll, bloom roll.
- Section mill roll edge roll, S roll.
Microstructure
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Performance Indicators
Performance Index | Units | Numerical Value |
Hardness | HSD | 42-55 |
Tensile strength | MPa | 550-800 |
Thermal conductivity | Wm℃.at 500℃ | 32-36 |
Swelling coefficient |
10-6/℃ | 11-12 |
Young modulus | 104MPa | 21-23 |
Poisson’s ratio | – | 0.24-0.28 |
Density | Kg/m3 | 7750 |
Specific heat capacity | J/g℃ | 0.55 |
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