Mechanical properties | Data |
Roll surface hardness | HSD60-85 |
Roll neck hardness | HSD35-48 |
Tensile strength of core | ≥400Mpa |
Iron roll chemical composition
Material | Chemical composition | Hardness | |||||
C | Si | Mn | Ni | Cr | Mo | ||
Chilled I | 3.1-3.5 | 0.35-1.0 | 0.4-1.0 | 0.5-1.0 | 0.5-1.0 | 0.2-0.6 | 60-75 |
Chilled II | 3.1-3.5 | 0.35-1.0 | 0.4-1.0 | 1.0-2.0 | 0.7-1.2 | 0.2-0.6 | 62-72 |
Chilled III | 3.1-3.5 | 0.35-0.9 | 0.4-1.0 | 2.0-3.0 | 0.8-1.6 | 0.2-0.6 | 65-75 |
Chilled IV | 3.1-3.5 | 0.35-0.9 | 0.4-1.0 | 3.0-5.0 | 1.0-1.6 | 0.2-0.6 | 75-85 |
Application
Infinite cast iron roll is used in hot steel strip finishing rolling mill stand,continuous re-bar finishing rolling mill stand,high speed wire pre-finishing rolling mill stand,small section intermediate rolling mill and finishing rolling front mill,as well as thin steel strip mill and straightening mill stand.
Rolls package
