Casting Method: | Sand Casting |
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Casting Form Material: | Graphite |
Casting Metal: | Cast Iron |
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1. Product name | ||||||||
Indefinite chill alloy cast iron rolls | ||||||||
2. Chemical composition | ||||||||
Code | C | Si | Mn | P | S | Ni | Cr | Mo |
CC III | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 2.01~3.00 | 0.50~1.50 | 0.20~0.60 |
CC IV | 2.90~3.60 | 0.25~0.80 | 0.20~1.00 | ≤0.40 | ≤0.08 | 3.01~4.50 | 0.50~1.70 | 0.20~0.60 |
IC III | 2.90~3.60 | 0.60~1.20 | 0.40~1.00 | ≤0.25 | ≤0.05 | 2.01~3.00 | 0.70~1.20 | 0.20~1.00 |
IC IV | 2.90~3.60 | 0.60~1.50 | 0.40~1.00 | ≤0.10 | ≤0.05 | 3.01~4.80 | 1.00~2.00 | 0.20~1.00 |
IC V | 2.90~3.60 | 0.60~1.50 | 0.40~1.00 | ≤0.10 | ≤0.05 | 3.01~4.80 | 1.00~2.00 | 0.20~2.00 |
Code | Body Hardness (HSD) | Neck Hardness (HSD) | MPa | |||||
CC III | 65-80 | 32-45 | ≥350 | |||||
CC IV | 70-85 | 32-45 | ≥350 | |||||
IC III | 65-78 | 32-45 | ≥350 | |||||
IC IV | 70-83 | 32-45 | ≥350 | |||||
IC V | 77-85 | 32-45 | ≥350 | |||||
Alloy Indefinite chilled cast iron roll is a cast iron with fine intercrystalline graphite evenly distributed | ||||||||
throughout the working layer of roll barrel. The sizes, shapes and distributions of graphite and carbide | ||||||||
are controlled by the chilling effect and the contents of alloy elements. The addition of alloy elements | ||||||||
such as manganese, nickel, chromium and molybdenum chages the matrix microstructure from | ||||||||
pearlite, bainite to martensite. | ||||||||
This roll has small hardness gradient in the woriking layer of roll barrel and is suitable to medium | ||||||||
and finishing stands for bar, wire and section mills. | ||||||||