I am trying to compare two aluminium alloys: 5052-H32 6061-T6 One is describes as having "very good corrosion resistance" and the other has "high resistance to corrosion". Which is best? Is there a more scientific way to compare them for corrosion resistance? Surely the breakdown of alloy components (see links above) is a good indicator? Perhaps the amount of chromium? Can anyone give me an idea of how the two alloys would compare in terms of corrosion resistance?