Do any metals contract, on heating?

Christopher A. Young
Learn more about Jesus
www.lds.org
..

"Martin Eastburn" wrote in message
...
Remember Al expands on heating - and you will be hearing as you
cut or mill on it - thereby cutting off or milling off more than you
plan. The metal will have to be flooded as you cut - to keep cool and
make the cut in the right place.