About 6xxx Series Alloys
The 6xxx series are versatile, heat treatable, highly formable, weldable and have moderately high strength coupled with excellent corrosion resistance. Alloys in this series contain silicon and magnesium in order to form magnesium silicide within the alloy. Extrusion products from the 6xxx series are the first choice for architectural and structural applications. Alloy 6061 is the most widely used alloy in this series and is often used in truck and marine frames. Additionally, the iPhone 6 extrusion was made from 6xxx series alloy.
Characteristics
6005A T5 is a medium structural alloy. Good extrusion characteristics with good surface finish. Available in structural shapes of all types, rod, bar, and tube, offered in the T5 temper.
Applications
Medium structural applications where surface finish is important. Marine, Transport applications.
Technical Specifications
The guaranteed minimum mechanical properties of 6005A are tabulated below.
| Physical Properties |
Metric |
| Density |
2.70 g/cc |
| Mechanical Properties |
Metric |
| Hardness, Brinell |
95 |
| Hardness, Knoop |
120 |
| Hardness, Vickers |
107 |
| Tensile Strength, Ultimate |
260 MPa |
| Tensile Strength, Yield |
240 MPa |
| Elongation at Break |
8.0% |
| Modulus of Elasticity |
69.0 GPa |
| Poissons Ratio |
0.33 |
| Fatigue Strength |
100 MPa |
| Shear Modulus |
26.0 GPa |
| Shear Strength |
205 MPa |
| Electrical Properties |
Metric |
| Electrical Resistivity |
0.00000349 ohm-cm @ 20 °C |
| Thermal Properties |
Metric |
| CTE, linear |
23.4 µm/m-°C |
| Specific Heat Capacity |
0.890 J/g-°C |
| Thermal Conductivity |
189 W/m-K |
| Melting Point |
607.2 - 654 °C |
| Solidus |
607.2 °C |
| Liquidus |
654 °C |
| Processing Properties |
Metric |
| Annealing Temperature |
414 °C |
| Solution Temperature |
546.1 °C |
| Aging Temperature |
174 °C |
| Component Elements Properties |
Metric |
| Aluminum, Al |
<= 97.5 % |
| Chromium, Cr |
<= 0.10 % |
| Copper, Cu |
<= 0.10 % |
| Iron, Fe |
<= 0.35 % |
| Magnesium, Mg |
0.40 - 0.60 % |
| Manganese, Mn |
<= 0.10 % |
| Other, each |
<= 0.05 % |
| Other, total |
<= 0.15 % |
| Silicon, Si |
0.60 - 0.90 % |
| Titanium, Ti |
<= 0.10 % |
| Zinc, Zn |
<= 0.10 % |