On 6/3/2013 7:33 PM, asdfasdf wrote:
On 6/3/2013 8:47 PM, Martin Eastburn wrote:
Remember steel and Aluminum don't mix. They can start a metal fire.
Be clean.

That's really with only very fine (dry) powdery type mixtures. It
won't be a problem with a saw. Your clump just bonded because of
corrosion.



the mixture of iron and aluminum powders is called "Thermite".