Aluminum Square Bar
6061-T6511 Aluminum Square Bar is a precision-machined, high-strength extrusion ideal for load-bearing structural and fabrication projects. Its hardness and excellent machinability make it suitable for brackets, framing, and industrial parts that require tight tolerances, corrosion resistance, and long-term durability.
Aluminum Square Bar, also called "square rod," is a solid, sharp-cornered extrusion prized for its clean profile and lightweight strength. Commonly used in construction, support bracing, and general fabrication, it resists corrosion while offering easy machining, cutting, and welding across a range of indoor and outdoor applications.
6061-T6511 Aluminum Square Bar is a precision-machined, high-strength extrusion ideal for load-bearing structural and fabrication projects. Its hardness and excellent machinability make it suitable for brackets, framing, and industrial parts that require tight tolerances, corrosion resistance, and long-term durability.
Aluminum Square Bar, also called "square rod," is a solid, sharp-cornered extrusion prized for its clean profile and lightweight strength. Commonly used in construction, support bracing, and general fabrication, it resists corrosion while offering easy machining, cutting, and welding across a range of indoor and outdoor applications.
Specifications
Available Sizes
6061-T6511 in standard or custom-cut lengths
Custom Cut Tolerance
±1/16"
Finishes
Mill Finish (extruded, may have surface scuffs or scratches)
Measurement Guide
Width X Width X Length
PageTitle
Aluminum Square Bar, 6061 T6511 Solid Rod, Machinable and Corrosion Resistant
Specifications
6061-T6511
ASTM B221
AMS-QQ-A-200/8
ASTM B221
AMS-QQ-A-200/8
Applications
Aerospace and marine applications
Structural components, frames, and brackets
Jigs, fixtures, and machine parts
Automotive, marine, and truck components
Electronic, ornamental, and hardware applications
Structural components, frames, and brackets
Jigs, fixtures, and machine parts
Automotive, marine, and truck components
Electronic, ornamental, and hardware applications
Material Properties
High strength-to-weight ratio
Good corrosion resistance
Excellent weldability
Good machinability
Poor bending and forming capabilities (6061 alloy)
Heat-treatable for increased strength
Good corrosion resistance
Excellent weldability
Good machinability
Poor bending and forming capabilities (6061 alloy)
Heat-treatable for increased strength
Mechanical Properties
Tensile Strength = 45 ksi
Yield Strength = 40 ksi
Shear Strength = 30 ksi
Fatigue Strength = 14 ksi
Brinell Hardness = 95
Melting Point = 1,080 - 1,205°F
Yield Strength = 40 ksi
Shear Strength = 30 ksi
Fatigue Strength = 14 ksi
Brinell Hardness = 95
Melting Point = 1,080 - 1,205°F
Chemistry
Aluminum: 98%
Chromium: 0.04 - 0.35%
Copper: 0.15 - 0.40%
Iron: 0.7% max
Magnesium: 0.8 - 1.2%
Manganese: 0.15% max
Silicon: 0.4 - 0.8%
Titanium: 0.15% max
Zinc: 0.25% max
Chromium: 0.04 - 0.35%
Copper: 0.15 - 0.40%
Iron: 0.7% max
Magnesium: 0.8 - 1.2%
Manganese: 0.15% max
Silicon: 0.4 - 0.8%
Titanium: 0.15% max
Zinc: 0.25% max
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