Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments.
Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65°C.
Applications
Alloy 5083 is typically used in:
~ Shipbuilding
~ Rail cars
~ Vehicle bodies
~ Tip truck bodies
~ Mine skips and cages
~ Pressure vessels
Mechanical Properties shown are for 0/H111 temper
Alloy Designations
Alloy 5083 corresponds to the following standard designations and specifications but may not be a direct equivalent: :
GM41
A95083
AlMG4.5Mn
Al Mg4.5 Mn0.7
Temper Types
The most common tempers for 5083 aluminium are:
- O - Soft
- H111 - Some work hardening imparted by shaping processes but less than required for H11 temper
- H32 - Work hardened by rolling then stabilised by low-temperature heat treatment to quarter hard
Weldability
When welding 5083 to itself or another alloy from the same sub-group, the recommended filler metal is 5183. Other suitable fillers are 5356 and 5556.
Weldability – Gas: Average
Weldability – Arc: Excellent
Weldability – Resistance: Excellent
Brazability: Poor
Solderability: Poor
Fabrication
Workability – Cold: Average
Machinability: Poor