An alloy of iron and aluminium is as good as titanium, at a tenth of the cost
'As good as' is a silly phrase to use in metallurgy. Are we talking machinability, castability, tensile strength or hardness. Not to mention less obvious issues like food safety or resistance to corrosion?<p>There are very many alloys of both aluminium and steel all of which have there uses. To say this one is as good as titanium means very little.