Final answer:
Hot rolling is characterized by products with a rougher texture and less precise dimensions due to the high temperatures used to increase metal malleability.
Step-by-step explanation:
A characteristic of products produced by hot rolling is that they generally have a rougher texture and less precise dimensions than those produced by cold rolling techniques. As iron or steel is heated to a high temperature during the hot rolling process, it becomes more malleable, allowing it to be shaped into a variety of different objects with ease. This heat treatment results in products that are easier to work with but can include scale on the surface and a reduction in strength in comparison to cold rolled steel.
The process of hot rolling involves the transformation of heated metal billets into shapes such as sheets, rods, and bars. The high temperature makes the iron atoms vibrate more and move around more freely, which is conducive to manipulating the metal into the desired form. Moreover, as part of the steel-making process, steel is made by removing impurities from iron and adding other elements to produce various steel alloys, which can then undergo hot rolling to shape the final product.