Aluminum Rectangle Bar 6061-T6511 Extruded is one of the most versatile and widely used "workhorse" alloys, offering an excellent balance of strength, weldability, and corrosion resistance. The T6511 temper means this material has been solution heat-treated, artificially aged, and stress-relieved by stretching to ensure it remains straight and stable during high-speed machining. Because it is extruded, this rectangular bar provides an economical solution for structural frameworks, mounting plates, and custom brackets where high-performance durability is required. Unlike the 2024 series, 6061 aluminum is highly resistant to atmospheric corrosion, making it a reliable choice for both indoor and outdoor marine and industrial applications. It is also exceptionally easy to weld and join, allowing for more flexibility in complex assembly projects. Choosing 6061-T6511 extruded stock ensures you get a dependable, all-purpose metal that meets standard ASTM B221 requirements.
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Product Information

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Please note:

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Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
Thickness
1.125
Width
4
Alloy
6061
Temper
T6511
Production Method
Extruded
Metal Type
Aluminum
Shape
Bar-Rectangle
Brand
Online Approved Seller
Tolerance
+/- 0.125"
Weight/Lineal Foot
7.4 pounds
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Mechanical Properties

Ultimate Tensile Strength KSI
42
Density g/cm^3
3
Yield Tensile Strength KSI
40
Brinell Hardness 500 kg load
93
Melting Point °F
1080 - 1205
Elongation % in 2 in.
9
Rockwell Hardness B Scale
59
Machinability %
50
Shear Strength KSI
25
Electrical Conductivity % IACS
43
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Chemistry Information : 6061 Aluminum

Element
Percentage
Element
Percentage
Element
Percentage
Al
98
Cr
0.04 - 0.35
Cu
0.15 - 0.4
Fe
0.7  max
Mg
0.8 - 1.2
Mn
0.15  max
Si
0.4 - 0.8
Ti
0.15  max
Zn
0.25  max
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