ThePipingMart Blog Grades Aluminum 6070 Alloy (UNS A96070) – Composition, Properties and Uses

Aluminum 6070 Alloy (UNS A96070) – Composition, Properties and Uses

Aluminium 6070

Aluminium 6070 is an alloy of aluminum and other elements with a range of mechanical properties that make it perfect for a variety of applications. UNS A96070 is corrosion resistant, heat resistant, and has excellent machining and welding capabilities. In this blog post, we’ll be taking a closer look at the properties and uses of 6070 Alloy to help you decide if it’s the right fit for your needs.

6070 Alloy Composition

Element Content (%)
Aluminium / aluminum, Al 97
Silicon, Si 1.40
Magnesium, Mg 0.80
Manganese, Mn 0.70
Copper, Cu 0.28

6070 Alloy Physical Properties

Properties Metric Imperial
Density 2.6-2.8 g/cm3 0.0939- 0.101 lb/in3

6070 Alloy Mechanical Properties

Properties Metric Imperial
Tensile strength 145 MPa 21031 psi
Yield strength 69 MPa 10008 psi
Shear strength 97 MPa 14069 psi
Fatigue strength 62 MPa 8993 psi
Elastic modulus 70-80 GPa 10153-11603 ksi
Poisson’s ratio 0.33 0.33
Elongation 20% 20%
Hardness 35 35

6070 Alloy Thermal Properties

Properties Conditions
Temp Treatment
Thermal conductivity 175 W/mK 25ºC/77ºF T6

6070 Alloy Equivalent

  • ASTM B221

6070 Alloy Uses

Aluminum 6070 is an alloy that has a wide range of uses across many industries. It is frequently utilised in the aerospace industry due to its superior strength-to-weight ratio, which provides lighter parts for aircraft construction than steel or titanium alloys. Construction workers are also taking advantage of aluminium 6070’s weatherproof features and use it for roofing, cladding, and warehouse panelling to protect from extreme temperatures. An additional benefit that aluminum 6070 can provide to both the aerospace and building industries is its corrosion-resistant properties making it ideal for coastal applications or anywhere exposed to saltwater. Furthermore, this versatile alloy can also be used for boat manufacturing and other marine applications, as well as machinery components, accessories welding, heat sinks, and brackets. Overall, Aluminium 6070 is an extremely useful material with many applications.

Corrosion Resistance

Aluminium 6070 offers superior corrosion resistance in both indoor and outdoor environments. This is due to its high chromium content, which helps to protect the alloy from oxidation and water exposure. The alloy also offers protection against saltwater corrosion, making it ideal for marine applications such as boat building or offshore platforms.

Heat Resistance

Aluminium 6070 is highly heat resistant due to its high silicon content. This makes it perfect for applications where elevated temperatures are present such as in ovens or heating units. The alloy can withstand temperatures up to 250°C (482°F) before deforming or softening.

Heat Treatment

The composition of Aluminum 6070 allows for easy heat treatment so that its properties can be tailored for specific purposes. Heat treatment can be used to increase strength, hardness, electrical conductivity, ductility, or thermal conductivity, depending on the desired outcome. This makes aluminium 6070 ideal for applications where higher performance levels are needed, such as aircraft structures or automotive parts.

Machining & Welding

Aluminium 6070 is relatively easy to machine thanks to its good machinability rating. The alloy can be welded using conventional arc welding techniques, including TIG welding and MIG welding but should not be welded with oxy-acetylene torches because they will cause cracking due to their high heat input rate if a more precise finish is required. Then laser cutting can be used instead, which produces smoother edges than traditional cutting methods like sawing or shearing.


Aluminium 6070 is an incredibly versatile material that has a wide range of uses in many industries due to its strong mechanical properties and excellent corrosion resistance. Its ability to be easily machined and welded make it perfect for custom projects, while its heat resistance makes it suitable for applications where elevated temperatures are present such as in ovens or heating units. In short, aluminium 6070 provides superior performance in any application you may need it for!

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