Defence Aluminium – Plate Products - Aleris

Corrosion performance
The Aleris Alustar ® alloy was originally
developed for the challenging corrosion
requirements of the international ship-
building industry. Alustar ® has been
further developed to make it applicable
to the defence industry, where corrosion
performance is an essential operational
requirement.
Natural sea water test
Alloy* Temper Thickness
mm in
Test time
month
MIG welded
with fi ller alloy
Remarks
5059 H136 12.7 0.5 14 5183 insignifi cant attack on the water line, no visible attack on the weld seam
Alustar ® insignifi cant attack in the Heat Affected Zone (HAZ), pitting on the surface
2519 T87 13 0.51 3 2319 corrosion on the rolled surface, insignifi cant attack on the weld seam and in the HAZ
* According to AA or EN AW
AA 5059 H136
front side (fi nal weld pass)
For example, not only for amphibious
vehicles but also for other armoured
vehicles in corrosive environments due
to chemical / biological exposure or the
extreme environment conditions seen
through operational deployment throughout
the life time of such vehicles.
AA 5059 H136
back side (root pass)
Welded samples of AA 5059 and AA 2519 after natural sea water corrosion test
AA 2519 T87
front side (fi nal weld pass)
Today’s economic expectations are leading
to extended life cycles for current and
future military platforms requiring new
materials like Alustar ® with outstand-
ing corrosion resistance and excellent
ballistic protection.
AA 2519 T87
back side (root pass)
Defence Aluminium 9