Aluminum Flatbar
6061-T6511 Aluminum is the workhorse of the metal fabrication world, combining exceptional versatility with superior corrosion resistance. This premium extruded aluminum delivers an impressive balance of strength and workability that professionals rely on. Its diverse mechanical properties allow for precision fabrication using standard techniques, while maintaining structural integrity. It excels in welding applications regardless of condition, offers superior formability when annealed, and provides exceptional machinability when aged—making it the go-to choice for both demanding industrial projects and precision DIY applications.
Aluminum rectangular bar (commonly known as 'flat bar stock') is the lightweight champion of fabrication materials, delivering exceptional strength-to-weight ratio and outstanding corrosion resistance. This precision-extruded product features crisp, square corners for clean aesthetics and precise fitment. For demanding applications, 6061 alloy offers superior hardness and machinability in thicknesses up to 3 inches—perfect for structural components and heavy-duty brackets. For intricate forming work, 6063 alloy provides enhanced flexibility and formability in thinner gauges under 1/2 inch, ideal for detailed architectural elements and complex bends.
6061-T6511 Aluminum is the workhorse of the metal fabrication world, combining exceptional versatility with superior corrosion resistance. This premium extruded aluminum delivers an impressive balance of strength and workability that professionals rely on. Its diverse mechanical properties allow for precision fabrication using standard techniques, while maintaining structural integrity. It excels in welding applications regardless of condition, offers superior formability when annealed, and provides exceptional machinability when aged—making it the go-to choice for both demanding industrial projects and precision DIY applications.
Aluminum rectangular bar (commonly known as 'flat bar stock') is the lightweight champion of fabrication materials, delivering exceptional strength-to-weight ratio and outstanding corrosion resistance. This precision-extruded product features crisp, square corners for clean aesthetics and precise fitment. For demanding applications, 6061 alloy offers superior hardness and machinability in thicknesses up to 3 inches—perfect for structural components and heavy-duty brackets. For intricate forming work, 6063 alloy provides enhanced flexibility and formability in thinner gauges under 1/2 inch, ideal for detailed architectural elements and complex bends.
Specifications
Aging
Aging precipitation heat treatment done at 350°F for 8 hours, followed by air cooling
Annealing
Performed at 775°F for 2-3 hours, followed by controlled cooling
Available Lengths
2ft, 4ft, 6ft, 12ft, or custom cut
Custom Cut Tolerance
±1/16"
PageTitle
6061 Aluminum Flat Bar, Extruded Rectangular Stock, Corrosion Resistant
Standard Length Tolerance
±1/4"
Heat Treatment
Solution heat treat at 990°F for adequate time, then water quench
Precipitation hardening at 320°F for 18 hours, air cool, then 350°F for 8 hours
Precipitation hardening at 320°F for 18 hours, air cool, then 350°F for 8 hours
Material Properties
Excellent corrosion resistance
High strength-to-weight ratio
Good weldability and machinability
Strong and durable for structural applications
High strength-to-weight ratio
Good weldability and machinability
Strong and durable for structural applications
Mechanical Properties
6061 in the T4 condition has a machinability rating of 90% when compared to 2011 at 100%
6061 can be readily welded using all common welding techniques
6061 can be forged at temperatures in the range of 750°F to 900°F
Hot working may be done in the temperature range of 500°F to 700°F
6061 can be readily welded using all common welding techniques
6061 can be forged at temperatures in the range of 750°F to 900°F
Hot working may be done in the temperature range of 500°F to 700°F
Applications
Aerospace and marine industries
Structural applications and building construction
Machinery parts, automotive components, and frames
Boat equipment, furniture, and industrial brackets
Structural applications and building construction
Machinery parts, automotive components, and frames
Boat equipment, furniture, and industrial brackets
Chemistry
Copper: 0.15 - 0.40%
Silicon: 0.40 - 0.80%
Iron: 0.70% max
Manganese: 0.15% max
Magnesium: 0.80 - 1.20%
Zinc: 0.25% max
Chrome: 0.04 - 0.35%
Titanium: 0.15% max
Silicon: 0.40 - 0.80%
Iron: 0.70% max
Manganese: 0.15% max
Magnesium: 0.80 - 1.20%
Zinc: 0.25% max
Chrome: 0.04 - 0.35%
Titanium: 0.15% max
Specifications
ASTM B221
AMS 4150
AMS QQ A 200/8
Tensile Strength = 45,000 PSI
Yield Strength = 40,000 PSI min
% Elongation = 17% min
Shear Strength = 30 ksi
Fatigue Limit = 14 ksi
Brinell Hardness = 95
Melting Point = 1220°F
AMS 4150
AMS QQ A 200/8
Tensile Strength = 45,000 PSI
Yield Strength = 40,000 PSI min
% Elongation = 17% min
Shear Strength = 30 ksi
Fatigue Limit = 14 ksi
Brinell Hardness = 95
Melting Point = 1220°F
Tolerances
Thickness Tolerance (Under 0.125"): ±0.006"
Thickness Tolerance (0.125" - 0.250"): ±0.007"
Thickness Tolerance (0.250" - 0.500"): ±0.008"
Thickness Tolerance (0.500" - 0.750"): ±0.009"
Thickness Tolerance (0.750" - 1.000"): ±0.010"
Thickness Tolerance (1.000" - 1.500"): ±0.012"
Thickness Tolerance (1.500" - 2.000"): ±0.014"
Thickness Tolerance (2.000" - 4.000"): ±0.024"
Thickness Tolerance (4.000" - 6.000"): ±0.034"
Thickness Tolerance (6.000" - 8.000"): ±0.044"
Thickness Tolerance (8.000" - 10.000"): ±0.054"
Thickness Tolerance (0.125" - 0.250"): ±0.007"
Thickness Tolerance (0.250" - 0.500"): ±0.008"
Thickness Tolerance (0.500" - 0.750"): ±0.009"
Thickness Tolerance (0.750" - 1.000"): ±0.010"
Thickness Tolerance (1.000" - 1.500"): ±0.012"
Thickness Tolerance (1.500" - 2.000"): ±0.014"
Thickness Tolerance (2.000" - 4.000"): ±0.024"
Thickness Tolerance (4.000" - 6.000"): ±0.034"
Thickness Tolerance (6.000" - 8.000"): ±0.044"
Thickness Tolerance (8.000" - 10.000"): ±0.054"
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1/8 X 1/2 Aluminum Flat Bar
.125" 6061 NON BENDABLE
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1/8 X 6 Aluminum Flat Bar
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3/16 X 1 Aluminum Flat Bar
.188" 6061 NON BENDABLE
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3/16 X 1-1/2 Aluminum Flat Bar
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1/4 X 3/4 Aluminum Flat Bar
.250" 6061 NON BENDABLE
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1/4 X 1 Aluminum Flat Bar
.250" 6061 NON BENDABLE
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.250" 6061 NON BENDABLE
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3/8 X 1 Aluminum Flat Bar
.375" 6061 NON BENDABLE
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3/8 X 1-1/2 Aluminum Flat Bar
.375" 6061 NON BENDABLE
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3/8 X 2 Aluminum Flat Bar
.375" 6061 NON BENDABLE
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.375" 6061 NON BENDABLE
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3/8 X 3 Aluminum Flat Bar
.375" 6061 NON BENDABLE
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3/8 X 6 Aluminum Flat Bar
.375" 6061 NON BENDABLE
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3/8 X 8 Aluminum Flat Bar
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1/2 X 3/4 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 1 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 1-1/2 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 2 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 2-1/2 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 3 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 4 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 5 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 6 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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1/2 X 8 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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.500" 6061 NON BENDABLE
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1/2 X 12 Aluminum Flat Bar
.500" 6061 NON BENDABLE
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3/4 X 4 Aluminum Flat Bar
.750" 6061 NON BENDABLE
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3/4 X 6 Aluminum Flat Bar
.750" 6061 NON BENDABLE
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3/4 X 8 Aluminum Flat Bar
.750" 6061 NON BENDABLE
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.750" 6061 NON BENDABLE
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