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 melting point of solder depends upon its particular formulation. In the case of eutectic tin-lead solder, the melting temperature is somewhere around 360 degrees Fahrenheit. The temperature becomes a bit higher with different formulations of solder, such as 60/40 tin lead, which may be 10 degrees higher.Higher temperatures can also be expected for lead-free versions of solder, and that may change the temperature at which youâd want to use for your soldering iron.he temperature becomes a bit higher with different formulations of solder, such as 60/40 tin lead, which may be 10 degrees higher. Higher temperatures can also be expected for lead-free versions of solder, and that may change the temperature at which youâd want to use for your soldering iron.