Aluminum material must be able to resist corrosive effects that are common in a sea water environment.
There are several different grades of aluminum that are suitable for marine conditions.
Grade 5052 is an excellent marine grade for when formability is required.
If strength is more of a concern, grade 5083 is a good alternative.
Alloy 5052
This is the highest strength alloy of the more non heat-treatable grades.
Its fatigue strength is higher than most other aluminum grades.
Alloy 5052 has a good resistance to marine atmosphere and salt water corrosion, and excellent workability.
It can be easily drawn or formed into intricate shapes.
| 5052 Aluminum Alloy Chemical Composition Limits |
| Weight% | Al | Cu | Si | Fe | Mn | Mg | Zn | Cr | Others |
| 5052 | Bal | 0.10 max | 0.25 max | 0.40 max | 0.10 max | 2.2 / 2.8 | 0.10 max | 0.15 / 0.35 max | 0.05 max (each)
0.15 (total) |
