Which direction is the grain structure of a rolled steel plate the strongest?

Question

​Which direction is the grain structure of a rolled steel plate the strongest?

Quizplus · Accepted Answer

The grain structure of a rolled steel plate is strongest in the direction of the roll. This is because the rolling process aligns the grains of the steel in this direction, creating a more uniform structure with fewer defects or weaknesses. In contrast, the 90° angle to the rolled direction (Option A) would have the weakest grain structure due to the lack of alignment. Additionally, through its thickness (Option C) would not necessarily have a consistent grain structure since it may be affected by the size and shape of the plate, as well as the rolling process. Lastly, while steel may be strong in multiple directions (Option D), the direction of the roll is still considered the strongest due to its alignment of the grain structure.

​Which Direction Is the Grain Structure of a Rolled Steel

Which Direction Is the Grain Structure of a Rolled Steel