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.
Depending on the composite of the concrete material, it can melt at  different temperatures. When concrete reaches a high enough  temperature such as more than 1000 degrees â¦ Celsius, it can crumble  like sugar.he melting will start with the material that has the lowest temperature melting point unless you allow the system to take a long time and react into other solids first, of course. A ballpark guess of 800-1000Â°C for melting is what I would assume, for various reasons.