Although hot rolled steel plateproducts are known for looser tolerances than cold rolled steel alternatives, a bit of play may be appropriate in your specific application.. Famous Hot Rolled Steel Plate Manufacturig Companies and Hot Rolled Steel Plate Manufacturer Companies Lists and Contact Information. Hot Rolled Low Carbon Steel Specifications Hot-Rolled low carbon steel has been rolled at high temperature from a cast steel slab more than two inches thick into steel coil as thin as 1/16 of an inch thick. Because the steel is rolled hot, and the reduction from slab to coil is great, the coil surfaces are noticeably rough and slightly oxidized.. Heated metal in hot rolling process The starting material is usually steel billets or slabs. First, they are heated above the aforementioned temperature. The next step is feeding them to the rolling machinery. Continuous rolling gives the desired final shape - a metal sheet (3 mm and upwards) or profile. Hot Rolled Steel Properties. Hot rolled steel and plate products are available as standard hot rolled or hot rolled P & O. Common hot rolled steel specifications include HR A36, HR A1011, and HR A1018. Advantages Increased malleability Numerous applications Less expensive than cold rolling High rate of production Provides a rougher surface than cold rolled steel.