Aluminium for seawater
Aluminium for seawater
(OP)
We need some aluminium material to fabricate a seawater inlet for foilcat. so we choose AL5083/5052
Chemical Composition for:
Si/Fe/Cu/Mn/Mg/Cr/Zn/Ti
AL5083 0.4-0.7/0.4/0.1/0.4-1/4-4.9/0.05-0.25/0.25/0.15
AL5052 0.25/0.4/0.1/0.1/2.2-2.8/0.15-0.35/0.1/-
Now we broguht some aluminium from China the result is:
Si/0.034 Fe/0.18 Cu/0.003 Mn/0.036 Mg/2.9 Cr/0.26 Zn/0.006 Ti/0.007
What is this? the material is good for use? good for welding? still have a good saltwater corrosion protection.
Chemical Composition for:
Si/Fe/Cu/Mn/Mg/Cr/Zn/Ti
AL5083 0.4-0.7/0.4/0.1/0.4-1/4-4.9/0.05-0.25/0.25/0.15
AL5052 0.25/0.4/0.1/0.1/2.2-2.8/0.15-0.35/0.1/-
Now we broguht some aluminium from China the result is:
Si/0.034 Fe/0.18 Cu/0.003 Mn/0.036 Mg/2.9 Cr/0.26 Zn/0.006 Ti/0.007
What is this? the material is good for use? good for welding? still have a good saltwater corrosion protection.





RE: Aluminium for seawater
The chinese alloy is low in copper. That is good if used for seawater application.
Mg is the only other metal that is more than a trace and that is also found in alloy 5356. It is a common aluminium welding alloy and used for welding 5083.
RE: Aluminium for seawater
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
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