Aluminium 5083
What is Aluminium 5083?
This alloy includes magnesium, aluminium, and very little chromium and manganese. It is very resistant to chemical and marine corrosion.
After welding, aluminium alloy 5083 maintains outstanding strength. Its ultimate tensile strength, which is 317 MPa or 46000 psi, and tensile yield strength, which is 228 MPa or 33000 psi, make it the strongest non-heat treated alloy available. The preferred alloy for usage at temperatures above 65 °C is not this one.
Aluminium 5083 Properties
Aluminium 5083 can also be referred to as the following grades and specifications but they may not always be a direct equivalent:
GM41
A95083
AlMG4.5Mn
Fabrication of Aluminium 5083
Work-ability – Cold: Average
Maintainability: Poor
Temper Types for Aluminium 5083
The most common tempers for 5083 Aluminium are:
- O - Soft
- H111
- H32
Weldability of Aluminium 5083
The suggested filler metal for welding 5083 to another alloy from the same family or to itself is 5183. 5356 and 5556 are further acceptable fillers.
Weldability – Gas: Average
Weldability – Arc: Excellent
Weldability – Resistance: Excellent
Brazability: Poor
Solderability: Poor
Chemical Composition of Aluminium 5083
5083 Alloy
| Chemical Element | % Present |
| Manganese (Mn) | 0.40 - 1.00 |
| Iron (Fe) | 0.40 max |
| Copper (Cu) | 0.10 max |
| Magnesium (Mg) | 4.00 - 4.90 |
| Silicon (Si) | 0.0 - 0.40 |
| Zinc (Zn) | 0.0 - 0.10 |
| Chromium (Cr) | 0.05 - 0.25 |
| Titanium (Ti) | 0.05 - 0.25 |
| Other (Each) | 0.0 - 0.05 |
| Others (Total) | 0.0 - 0.15 |
| Aluminium (Al) | Balance |
Physical Property |
Value |
| Density | 265 g/cm³ |
| Melting Point | 570 °C |
| Thermal Expansion | 25 x10^-6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 121 W/m.K |
| Electrical Resistivity | 0.058 x10^-6 Ω .m |
Plate - 6.3mm to 80mm
| Mechanical Property | Value |
| Proof Stress | 115 Min MPa |
| Tensile Strength | 270 - 345 MPa |
| Hardness Brinell | 75 HB |
Plate - 80mm to 120mm
| Mechanical Property | Value |
| Proof Stress | 110 Min MPa |
| Tensile Strength | 260 Min MPa |
| Hardness Brinell | 70 HB |
| Elongation A | 12 Min % |