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Metallurgical rolling mill rolls
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Material |
SG Acicular |
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Standard |
GB/T 1504-2008Standard |
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Size |
φ200mm≤body diameter≤φ1200mm |
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Parameter |
60≤body hardness≤80 |
32≤neck hardness≤45 |
tensile strength≥350MPA |
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Element |
C% |
Si% |
Mn% |
P% |
S% |
Ni% |
Cr% |
Mo% |
Mg% |
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2.90-3.60 |
1.00-2.00 |
0.25-0.60 |
≤0.10 |
≤0.03 |
3.00-3.80 |
0.20-0.80 |
0.60-1.10 |
≥0.04 |
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Mill stand |
Section mills |
Finished |
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H-shaped mills |
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Wire & rod mills |
Middle Finished |
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Strip mills |
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Description |
By adding an appropriate amount of alloying elements and a special heat treatment process, the work layer of roll can be bainite matrix-based organizations with relatively high strength, toughness and wear resistance, while acicular nodular iron has a small hardness drop. At the same time the core has a higher intensity by separate nodulizing |
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