How does the thickness and width of a slab change in a hot-rolling operation?

Question: What happens to the thickness and width of a slab in a hot-rolling operation? Answer: In a hot-rolling operation, the thickness of the slab is reduced by 20% while the width increases by 3%.

Changes in Thickness:

Thickness of the slab: Initially, the slab is 3 inches thick. After the hot-rolling operation, the thickness is reduced by 20%.

The new thickness of the slab can be calculated as follows:

Thickness after operation = Initial thickness - (20% of initial thickness)

Therefore, the final thickness of the slab is 2.4 inches.

Changes in Width:

Width of the slab: The initial width of the slab is 10 inches. After the hot-rolling operation, the width increases by 3%.

The new width of the slab can be calculated as follows:

Width after operation = Initial width + (3% of initial width)

Therefore, the final width of the slab is 10.3 inches.

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