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This is the most versatile of the heat treatable aluminum alloys. It has most of the good qualities of aluminum, and it offers a wide range of mechanical properties and corrosion resistance. It can be fabricated by many of the commonly used techniques.

In the annealed condition it has good formability. In the T4 condition fairly severe forming operations may be accomplished. The T6 properties may be obtained by artificial aging.

It is welded by all methods and can be furnace brazed. It is available in the clad form ("Alclad") with a thin surface layer of high purity aluminum to improve both appearance and corrosion resistance.

Specifications: QQ-A-250/11. AMS 4027

Color Marking (Rod and Bar): Ends painted Blue
Unit of Measure

Specifications

Thickness

N/A 2.750 in

Width

N/A 48 in

Length

N/A 144 in

Estimated Weight per Sq. Ft.

N/A 38.8 lb

Estimated Weight per Seet

N/A 1862 lb

Analysis

N/A Cu 0.15/0.40
Si. 0.4/0.8
Fe. .70 Max.
Mn .15 Max.
Mg .8/1.2
Zn .25 Max.
Cr. 0.04/0.35
Ti. .15 Max.

Specifications

N/A Sheet and Plate:
QQ-A-250/11, MIL-F-17132, ASTM B 209.
AMS 4025, AMS 4026, AMS 4027.

Bars: QQ-A-200/8, QQ-A-225/8, ASTM B 211, ASTM B 221, AMS 4150.

Structural Shapes: QQ-A-200/16, ASTM B 308.

Applications

N/A This grade is used for a wide variety of products and applications from truck bodies and frames to screw machine parts and structural components. Alclad 6061 is used where appearance and better corrosion resistance with good strength are required.

Mechanical Properties

N/A
Bare 6061-O
Tensile Strength - 18.000 psi
Yield Strength - 8.000 psi
Elongation in 2" (1/16" Flat)- 25%
Elongation in 2" (1/2" Round)- 30%
Min 90 Cold Bend Radius for .064" Thick - 0
Brinell Hardness Bars - 30

Bare 6061-T4, T451
Tensile Strength - 35.000 psi
Yield Strength - 21.000 psi
Elongation in 2" (1/16" Flat)- 22%
Elongation in 2" (1/2" Round)- 25%
Min 90 Cold Bend Radius for .064" Thick - 1/2 - 1 1/2 T
Brinell Hardness Bars - 65

Bare 6061-T6, T651
Tensile Strength - 45.000 psi
Yield Strength - 40.000 psi
Elongation in 2" (1/16" Flat)- 12%
Elongation in 2" (1/2" Round)- 17%
Min 90 Cold Bend Radius for .064" Thick - 1 - 2 T
Brinell Hardness Bars - 95

Alclad 6061-O
Tensile Strength - 17.000 psi
Yield Strength - 7.000 psi
Elongation in 2" (1/16" Flat)- 25%

Alclad 6061-T4
Tensile Strength - 33.000 psi
Yield Strength - 19.000 psi
Elongation in 2" (1/16" Flat)- 22%

Alclad 6061-T6
Tensile Strength - 42.000 psi
Yield Strength - 37.000 psi
Elongation in 2" (1/16" Flat)- 12%

Machinability

N/A For automatic screw machine operations, 6061 is rated between 70% and 80% of 2011 in the T4 and T6 conditions, and 50% in the O condition.