Aluminium / Aluminum 5083 Alloy (UNS A95083)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication and Heat Treatment
     Annealing
     Cold Working
     Welding
     Forging
     Forming
     Machinability
     Heat Treatment
     Hot Working
     Hardening
Applications

Introduction

Aluminium / Aluminum alloys are good low-temperature alloys as they gain strength when exposed to subzero temperatures. They have strong corrosion resistance characteristics and high electrical conductivity. These alloys lose their strength when exposed to high temperatures.. Aluminium / Aluminum alloys are sensitive to high temperatures ranging between 200 and 250°C (392 and 482°F).

The following datasheet provides an overview of Aluminium / Aluminum 5083 alloy.

Chemical Composition

The chemical composition of Aluminium / Aluminum 5083 alloy is outlined in the following table.

Element Content (%)
Aluminium / Aluminum, Al 94.7
Magnesium, Mg 4.4
Chromium, Cr 0.15
Manganese, Mn 0.7

Physical Properties

The following table shows the physical properties of Aluminium / Aluminum 5083 alloy.

Properties Metric Imperial
Density 2.66 g/cm3 0.0960 lb/in3
Melting point 577°C 1070°F

Mechanical Properties

The mechanical properties of Aluminium / Aluminum 5083 alloy are displayed in the following table.

Properties Metric Imperial
Elastic modulus 70-80 GPa 10152-11603 ksi
Poisson's ratio 0.33 0.33

Thermal Properties

The thermal properties of Aluminium / Aluminum 5083 alloy are given in the following table.

Properties Conditions
T (ºC) Treatment
Thermal expansion 23.4 (10-6/ºC) 20-100 -
Thermal conductivity 120 (W/mK) 25 All

Other Designations

Equivalent materials to Aluminium / Aluminum 5083 alloy are:

AMS 4057 AMS 4058 ASTM B209 ASTM B210 ASTM B221
ASTM B241 ASTM B247 ASTM B345 ASTM B361 ASTM B547
ASTM B548 DIN 3.3547 MIL A-45225 MIL A-46027 MIL A-46083
MIL G-S-24149/2 QQ A-200/4 QQ A250/6 QQ A-367 SAE J454





Fabrication and Heat Treatment

Annealing

Aluminium / Aluminum 5083 alloy can be annealed at 343°C (650°F) and then cooled in air.

Cold Working

Conventional methods work best for cold working Aluminium / Aluminum 5083 alloy.

Welding

Aluminium / Aluminum 5083 alloy can be welded by conventional methods and the filter rod used is this process is of the same alloy.

Forging

Aluminium / Aluminum 5083 alloy can be forged in the temperature range of 454 to 399°C (850 to 750°F).

Forming

Aluminium / Aluminum 5083 alloy has good forming characteristics when either cold or hot worked.

Machinability

Conventional methods are used for the machining process of Aluminium / Aluminum 5083 alloy.

Heat Treatment

Aluminium / Aluminum 5083 alloy is a non-heat treatable alloy.

Hot Working

Aluminium / Aluminum 5083 alloy is hot formed at 204°C (400°F) or higher to 371°C (700°F) when severe deformation is needed.

Hardening

Aluminium / Aluminum 5083 alloy is hardened only by cold working.

Applications

Aluminium / Aluminum 5083 alloy is used in missile components, welded pressure vessels, auto aircraft cryogenics, TV towers, drilling rigs, transportation equipment and marine parts.

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