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Thermo mechnainical Controlled Process with Super-OLAC
(Super On Line Accelerated Cooling)
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| Ultimate cooling rate |
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High strength with low Ceq. (Good weldability) |
| Uniform temperature profile |
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Homogeneous properties and flatness |
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• Sour resistance line pipe
• High strength line pipe (up to X100)
• Heavy wall pipe |
| Process of Plate Rolling |
Characteristies of Super - OLAC |
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| Homogeneous microstructure through thickness |
Fine bainitic microstructure |
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| Continuous cooling transformation diagram of 0.05%C-1.2%Mn
steel after hot deformation. |
Microstructures of the middle
thickness position of the
0.05%C-1.2%Mn steel AcC cooled with 30°C/s. |
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