Aluminium / Aluminum 5086 Alloy (UNS A95086)

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

Aluminium / Aluminum 5086 alloy is a high strength structural alloy. The following datasheet provides an overview of Aluminium / Aluminum 5086 alloy.

Chemical Composition

The chemical composition of Aluminium / Aluminum 5086 alloy is outlined in the following table.

Element Content (%)
Al 95.4
Mg 4.0
Cr 0.15
Mn 0.4

Physical Properties

The following table shows the physical properties of Aluminium / Aluminum 5086 alloy.

Properties Metric Imperial
Density 2.65 g/cm3 0.0957 lb/in3
Melting point 588°C 1090°F

Mechanical Properties

The mechanical properties of Aluminium / Aluminum 5086 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 5086 alloy are given in the following table.

Properties Conditions
T (ºC) Treatment
Thermal expansion 23.9 (10-6/ºC) 20-100 -
Thermal conductivity 127 (W/mK) 25 All

Other Designations

Equivalent materials to Aluminium / Aluminum 5086 alloy are given in the table below.

ASTM B209 ASTM B210 ASTM B221 ASTM B241 ASTM B313
ASTM B345 ASTM B361 ASTM B547 ASTM B548 MIL C-26094
MIL S-24149/2 QQ A-200/5 QQ A-250/7 SAE J454 QQ WW-T-700/5

Fabrication and Heat Treatment

Annealing

Aluminium / Aluminum 5086 alloy is annealed at 343°C (650°F) and then cooled in air.

Cold Working

Aluminium / Aluminum 5086 alloy has excellent cold working characteristics in the O temper and less good H38 and H36 tempers.

Welding

Conventional methods are suitable for welding Aluminium / Aluminum 5086 alloy. Excellent results can be obtained when electric arc welding is used for this alloy.

Forging

Aluminium / Aluminum 5086 alloy can be forged.

Forming

Aluminium / Aluminum 5086 alloy has excellent forming characteristics in the O temper and less good characteristics in H38 and H36 tempers.

Machinability

Aluminium / Aluminum 5086 alloy has good machining characteristics in the strain hardened tempers that include H38, H36 and H34.

Heat Treatment

Aluminium / Aluminum 5086 alloy is a non-heat treatable alloy.

Hot Working

The Aluminium / Aluminum 5086 alloy has excellent cold forming characteristics that do not usually require hot working.

Hardening

Aluminium / Aluminum 5086 alloy can be hardened only by being cold worked.

Applications

Aluminium / Aluminum 5086 alloy is used in missile components, unfired and welded pressure vessels, auto aircraft cryogenics, TV towers, drilling rigs, transportation equipment, tanks and marine components.

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