The tentacles of an octopus. The definition of a tentacle is a flexible arm used to touch and grab things, or the sensitive hairs on a plant leaf. An example of a tentacle is one of the eight arms of an octopus. tentacle.
Confidence votes 25. Steel often melts at around 1370 degrees C (2500 Â°F). This varies depending on the specific steel alloy. The specific heat of steel varied from 420J/KG/Deg C at room temperature to 720J/KG/Deg C at 1535 deg C. This equates to a theoretical heat requirement of approximately 375KWh/mt to melt steel from room temperature. In practice, foundries use between 500 and 800 KWh /mt to raise steel to a little above its melting point of 1535deg C.
The hot rolled steel comes in plus minus 0.01 inches, or even more than that. On the contrary, the cold rolled steel comes in less than 0.01 inches. Another difference that can be seen between cold rolled and hot rolled steel, is that cold rolled steel has fewer carbon inclusions. 1. Hot rolled steel is obtained at a temperature of 1000 degrees; the cold rolled steel is obtained at 50 degrees.