6063

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Grade 6063 aluminium is a medium strength alloy with additions of magnesium and silicon. Commonly utilised as an architectural alloy it has a good formability in manufacture and lends itself to intricate extrusions and sections.

It is heat treatable and offers good mechanical property’s, it also has a high corrosion resistance and is readily suited to welding. It is typically produced with a good surface finish that lends itself to excellent anodising characteristics.

Chemical Composition

Aluminium 

Rem

Silicon

0.2-0.6%

Copper

0.10% max

Iron

0.35% max

Manganese   

0.10% max

Magnesium

0.45-0.9%

Zinc

0.10% max

Titanium

0.10% max

Chromium

0.10% max

Total Others

0.15% max

Related Specifications

6063

Al Mg0.7Si

HE9

AlMgSi0.5

A-GS

3.32206

Key Features

  • Easily anodised
  • Readily weldable
  • Good corrosion resistance
  • Good surface finish
  • Reasonable strength

Typical Physical Properties

Melting Range                   

580-660°C

Density                                               

2.70 g/cm³

Thermal conductivity                    

197 W/m°K

Thermal expansion coefficient                 

24 x 10-6

Electrical Conductivity                            

49.3 IACS

Electrical resistivity   

0.035 microhm m

Modulus of elasticity                              

69 GPa

 Fabrication Properties

Cold Formability

Average

Machinability

Average

Soldering

Good

Brazing

Excellent

Gas Shielded Arc Welding                       

Excellent

Manual Metal Arc Welding                       

Excellent

Resistance Welding

Excellent

Typical Applications

6063 is typically used in architectural and industrial applications as complex extrusions for window frames, doors frames, roofs, signs, shop fittings, stair balustrades rails and posts, irrigation tubing and hydro-formed tube for chassis.

This technical information is given by Holme Dodsworth Metals without charge and the user shall employ such information at their own discretion and risk. For more detailed technical advice on temper selection, fabrication, joining, machining, physical and mechanical data please contact us as space does not permit the listing of every feature of the material.

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Holme Dodsworth Metals Limited.
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