Aluminium / UNS A96061
6061 is a heat-treatable aluminium-magnesium-silicon alloy with good strength, weldability and corrosion resistance — the most versatile structural aluminium alloy.
- UNS A96061
- Spec ASTM B209 / Aluminum Association
- Density 2.7 g/cm³
Also known as / equivalents
| System | Designation |
|---|---|
| UNS | A96061 |
| Also known as | AA6061, 6061-T6 |
Chemical composition
| Element | Min % | Max % |
|---|---|---|
| Si | 0.40 | 0.8 |
| Fe | — | 0.7 |
| Cu | 0.15 | 0.40 |
| Mn | — | 0.15 |
| Mg | 0.8 | 1.2 |
| Cr | 0.04 | 0.35 |
| Zn | — | 0.25 |
| Ti | — | 0.15 |
| Al | Bal. | — |
Mechanical properties
| Property | Value |
|---|---|
| Tensile strength (min) | 290 MPa (42.1 ksi) |
| Yield strength, 0.2% offset (min) | 240 MPa (34.8 ksi) |
| Elongation in 50 mm (min) | 10 % |
Physical properties
| Property | Metric | Imperial |
|---|---|---|
| Density | 2.7 g/cm³ | 0.098 lb/in³ |
| Magnetic response | Non-magnetic | — |
Available forms & specifications
| Form | Specification | Size range |
|---|---|---|
| Sheets & plates | ASTM B209 | 0.3 mm – 6 mm |
| Extruded bars, rods & profiles | ASTM B221 | 3 mm – 500 mm |
| Drawn tube | ASTM B210 | 1/8" – 24" NB |
| Pipe | ASTM B241 | 1/8" – 24" NB |
Corrosion & temperature resistance
5xxx and 6xxx alloys have good atmospheric and marine corrosion resistance; high-strength 2xxx alloys need cladding or coating in corrosive environments.
Applications
Aluminium 6061: Structures, machined parts, marine. Structural and architectural extrusions, marine and transport structures, machined components and aerospace parts.
Aluminium 6061 vs Aluminium 6063
| Aluminium 6061 | Aluminium 6063 | |
|---|---|---|
| UNS | A96061 | A96063 |
| Key property | Versatile heat-treatable alloy | Architectural extrusions |
| Typical use | Structures, machined parts, marine | Window frames, profiles, trims |
| Cr (wt %) | 0.04–0.35 | ≤ 0.10 |
| Ni (wt %) | — | — |
| Mo (wt %) | — | — |
| C (wt %) | — | — |
| Tensile / yield (min, MPa) | 290 / 240 | 205 / 170 |
Frequently asked questions
What is the UNS number of Aluminium 6061?
Aluminium 6061 is designated UNS A96061.
What is Aluminium 6061 used for?
Versatile heat-treatable alloy. Typical uses: structures, machined parts, marine.
Is Aluminium 6061 magnetic?
Non-magnetic.
In which forms can I buy Aluminium 6061 from Rajkamal Metals?
Coils & Strips, Sheets & Plates, Pipes & Tubes, Round Bars & Rods, Structural Sections, Custom Orders. Sizes as per standard; other sizes on request.
Do you supply a Mill Test Certificate with Aluminium 6061?
Yes. Actual values are given in the Mill Test Certificate (EN 10204 3.1) supplied with each order.
What is the difference between Aluminium 6061 and Aluminium 6063?
Aluminium 6061: versatile heat-treatable alloy. Aluminium 6063: architectural extrusions. See the comparison table on this page.
Last updated: 30 October 2026. Grade names identify the supply range; designations are not engineering equivalents. Availability, make, origin and documentation are confirmed at quotation.
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