Aluminium Alloy - Commercial Alloy - 6005A - T6 Extrusion

6005A - T6 Extrusion

Aluminium alloy 6005A is a medium strength, heat treatable alloy with excellent corrosion resistance.

Alloy 6005 has properties between those of alloys 6061 and 6082 and can sometimes be used interchangeably with these alloys, but 6005 has better extrusion characteristics and a better mill surface finish. It is difficult to produce thin-wall or complicated extrusions in 6005, but it is still more extrudable than 6082.

6005A tube has very good bending properties.

Applications
6005 and 6005A typically find application in intricate extrusions like:

~ Tubing for furniture
~ Railway and bus profile structures
~ Pylons, platforms and pipelines
~ Portable ladders
~ Sections where greater strength is needed than given by 6060 and 6063


Chemical Composition

Spec: BS EN 573-3:2009

Alloy 6005

Chemical Element % Present
Manganese (Mn) 0.0 - 0.50
Iron (Fe) 0.0 - 0.35
Magnesium (Mg) 0.40 - 0.70
Silicon (Si) 0.50 - 0.90
Zinc (Zn) 0.0 - 0.20
Titanium (Ti) 0.0 - 0.10
Chromium (Cr) 0.0 - 0.30
Copper (Cu) 0.0 - 0.30
Manganese + Chromium (Mn+Cr) 0.12 - 0.50
Other (Each) 0.0 - 0.05
Others (Total) 0.0 - 0.15
Aluminium (Al) Balance

Properties

Physical PropertyValue
Density 2.70 g/cm³
Melting Point 605 °C
Thermal Expansion 24 x10^-6 /K
Modulus of Elasticity 70 GPa
Thermal Conductivity 188 W/m.K
Electrical Resistivity 0.034 x10^-6 Ω .m

Spec: BS EN 755-2:2008

Rod & Bar - up to 25mm Dia. & A/F

Mechanical PropertyValue
Proof Stress 225 Min MPa
Tensile Strength 270 Min MPa
Elongation A50 mm 8 %
Shear Strength 205 MPa
Hardness Brinell 90 HB
Elongation A 10 Min %

Spec: BS EN 755-2:2008

Rod & Bar - 25mm to 50mm Dia. & A/F

Mechanical PropertyValue
Proof Stress 225 Min MPa
Tensile Strength 270 Min MPa
Hardness Brinell 90 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Bar - 50mm to 100mm Dia. & A/F

Mechanical PropertyValue
Proof Stress 215 Min MPa
Tensile Strength 260 Min MPa
Hardness Brinell 85 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Tube - Up To 5mm Wall Thickness

Mechanical PropertyValue
Proof Stress 225 Min MPa
Tensile Strength 270 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 90 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Tube - 5mm to 10mm Wall Thickness

Mechanical PropertyValue
Proof Stress 215 Min MPa
Tensile Strength 260 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 85 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Open Profile - Up to 5mm Wall Thickness

Mechanical PropertyValue
Proof Stress 225 Min MPa
Tensile Strength 270 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 90 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Open Profile - 5mm to 10mm Wall Thickness

Mechanical PropertyValue
Proof Stress 215 Min MPa
Tensile Strength 260 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 85 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Open Profile - 10mm to 25mm Wall Thickness

Mechanical PropertyValue
Proof Stress 200 Min MPa
Tensile Strength 250 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 85 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Hollow Profile - Up to 5mm Wall Thickness

Mechanical PropertyValue
Proof Stress 215 Min MPa
Tensile Strength 255 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 85 HB
Elongation A 8 Min %

Spec: BS EN 755-2:2008

Hollow Profile - 5mm to 15mm Wall Thickness

Mechanical PropertyValue
Proof Stress 200 Min MPa
Tensile Strength 250 Min MPa
Elongation A50 mm 6 Min %
Hardness Brinell 85 HB
Elongation A 8 Min %

Alloy Designations

Aluminium alloy 6005A also corresponds to the following standard designations and specifications but may not be a direct equivalent:

A96005

AlSiMg

AlSiMg(A)


Temper Types

The most common temper for 6005 aluminium is:

  • T6 - Solution heat treated and artificially aged

Supplied Forms

Alloy 6005 is supplied as

  • Extrusions
  • Tube

Weldability

The weldability of 6005A is excellent. 4043 welding wire is recommended unless joining to one of the 7XXX series. In this case 5356 wire is the suggested alternative.

 

Weldability – Gas: Excellent

Weldability – Arc: Excellent

Weldability – Resistance: Excellent

Brazability: Excellent


Fabrication

Workability – Cold: Fair

Machinability: Fair