Aluminum Round Bar 6061-T651 Cold Finish is a highly versatile, "all-purpose" alloy that offers a perfect balance of medium-to-high strength, excellent corrosion resistance, and superior weldability. The T651 temper indicates that the metal has been solution heat-treated, artificially aged, and stress-relieved by stretching, ensuring the bar remains straight and stable throughout intensive machining processes. By utilizing a cold-finish process, this round stock achieves tighter diameter tolerances and a smoother, more uniform surface than standard extruded bars, making it ideal for high-precision components. It is the go-to choice for marine hardware, automotive parts, and structural frames because it maintains its integrity even when exposed to harsh environmental conditions. Additionally, its exceptional finishing characteristics allow for high-quality anodizing in various colors, adding both aesthetic appeal and extra surface protection.
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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.
Diameter
2.125
Alloy
6061
Temper
T651
Production Method
Cold Finish
Metal Type
Aluminum
Shape
Bar-Round
Brand
Online Approved Seller
Tolerance
+/- 0.125"
Weight/Lineal Foot
6.256 pounds
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Mechanical Properties

Ultimate Tensile Strength KSI
46
Yield Tensile Strength KSI
39
Density g/cm^3
3
Brinell Hardness 500 kg load
93
Rockwell Hardness B Scale
59
Elongation % in 2 in.
11
Shear Strength KSI
30
Melting Point °F
1080 - 1205
Machinability %
50
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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