According to an old Wikipedia revision, charcoal burns at temperatures as high as 2600 °C. Other sources which seem less reliable give a figure of around 1000 °C. The Wikipedia article has since been updated to state a temperature of 1100 °C.
I know that it depends on the airflow, but how high of a temperature can normal charcoal (bought for BBQs) burn? Can it be used to melt metals with a melting point such as iron or steel?