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This is one of the highest strength aluminum alloys available. Its strength-to-weight ratio is excellent, and it is ideally used for highly stressed parts. It may be formed in the annealed condition and subsequently heat treated. Spot or flash welding can be used, although arc and gas welding are not recommended. It is available in the clad ("Alclad"} form to imrjrove the corrosion resistance with the over-all high strength being only moderately affected.

Specifications: QQ-A-250/12. AMS 4045

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

Specifications

Thickness

 N/A .750 in

Width

 N/A 48 in

Length

 N/A 144 in

Estimated Weight per Sq. Ft.

 N/A 10.9 lb

Estimated Weight per Plate

 N/A 523 lb

Analysis

N/A Cu 1.2/2.0
Si. 0.40Max.
Fe. .50 Max.
Mn .30 Max.
Mg 2.1/2.9
Zn 5.1/6.1
Cr. 0.18/0.28
Ti. .20 Max.

Specifications

N/A Drawn Bars: QQ-A-225/9, AMS 4122.
Extruded Bars: QQ-A-200/11, AMS 4154.
Bare Sheet: QQ-A-250/12, AMS 4044 (O), AMS 4045 (T6).
Alclad Sheet: QQ-A-250/13, AMS 4048 (O), AMS 4049 (T6).
Bare Plate: QQ-A-225/12, AMS 4045.

Applications

N/A Used where highest strength is needed.

Mechanical Properties

N/A
Bare 7075-O
Tensile Strength - 33.000 psi
Yield Strength - 15.000 psi
Elongation in 2" (1/16" Flat)- 17%
Elongation in 2" (1/2" Round)- 16%
Min 90 Cold Bend Radius for .064" Thick - 0-1T
Brinell Hardness Bars - 60

Bare 7075-T6, T651
Tensile Strength - 83.000 psi
Yield Strength - 73.000 psi
Elongation in 2" (1/16" Flat)- 11%
Elongation in 2" (1/2" Round)- 11%
Min 90 Cold Bend Radius for .064" Thick - 4 - 6 T
Brinell Hardness Bars - 150

Alclad 7075-O
Tensile Strength - 32.000 psi
Yield Strength - 14.000 psi
Elongation in 2" (1/16" Flat)- 17%

Alclad 7075-T6, T651
Tensile Strength - 76.000 psi
Yield Strength - 67.000 psi
Elongation in 2" (1/16" Flat)- 11%

Machinability

N/A For automatic screw machine operations, 7075 is rated between 75% and 85% of 2011 in the T6 condition, and 65% in the O condition.