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?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.