Ryerson offers a diverse range of aluminum square tubing in various thicknesses, ranging from 0.062" to 0.5" and widths from 0.75" to 8". These tubing products are available in both extruded and welded forms.
The most commonly used grades for aluminum square tubing are 6061 and 6063. These alloys are heat treatable, meaning their initial strength can be further enhanced by adding copper, magnesium, zinc, and silicon. When exposed to elevated temperatures, these alloying elements contribute to increased strengthening.
| Temper | Impact |
| F (as fabricated) | As rolled, no annealing, mechanical properties consistent. |
|---|---|
| O (annealed) | The process of heating and cooling to induce softening. |
| H (strain hardened) | An increase in hardness and strength caused by plastic deformation at temps lower than the recrystallizing range/cold worked. |
| T (thermally treated) | Heat treated |
| W (solution heat treated) | Heating metal to high temp & maintaining it long enough for one or more constituents to enter the solid solution. Solution is then cooled rapidly to retain the constituents within. |
Mechanical properties for extruded aluminum square tube
Alloy
Tensile Strength - KSI
Ultimate
Yield
Min.
Max.
Min.
Max.
6061-TI
26.0
--
14.0
--
6061-O
--
22.0
--
16.0
6061-T4, T4510 and T4511
26.0
--
16.0
--
6061-T42
26.0
--
14.0
--
6061-T51
35.0
--
30.0
--
6061-T6, T62, T6510, T6511
38.0
--
35.0
--
6063-O
--
19.0
--
--
6063-T4 and T42
19.0
18.0
--
10.0
9.0
--
6063-T5
22.0
21.0
--
16.0
15.0
--
6063-T52
22.0
30.0
16.0
25.0
6063-T6 and T62
30.0
30.0
--
25.0
25.0
--
*properties value by thickness
please note the data provided is only meant as a basis for comparing grades and materials and should not be used for engineering requirements or design purposes
Alloy
Tensile Strength - KSI
Ultimate
Yield
Min.
Max.
Min.
Max.
6061-O
--
22.0
--
16.0
6061-TI
26.0
--
14.0
--
6061-T4, T4510 and T4511
26.0
--
16.0
--
6061-T42
26.0
--
12.0
--
6061-T51
35.0
--
30.0
--
6061-T6, T62, T6510, T6511
38.0
--
35.0
--
6063-O
--
19.0
--
--
6063-T4 and T42
19.0
18.0
--
10.0
9.0
--
6063-T5
22.0
--
16.0
--
*properties value by thickness
please note the data provided is only meant as a basis for comparing grades and materials and should not be used for engineering requirements or design purposes.
