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.
Ilya Stcherbakov/iStock/Getty Images. 1,688 degrees Fahrenheit is an extremely hot temperature; however, in metallurgy it is considered a low melting point. Compared to iron's melting point -- 2,786 degrees Fahrenheit -- the average melting point of brass at 1,688 makes it a low-melting alloy.oad the crucible with the brass that you would like to melt down. Use a crucible that is made from a clay-graphite mix, as metal crucibles may melt during the process. Lower the crucible into the furnace with a pair of tongs.