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Home » Products » Aluminium Alloy Products » ALUMINIUM ALLOY UNS A97075

ALUMINIUM ALLOY UNS A97075

ALUMINIUM ALLOY UNS A97075
ALUMINIUM ALLOY UNS A97075
Product Code : ALUMINIUM ALLOY UNS A97075
Product Description

Applications :
Due to its high strength-to-weight ratio, 7075 is used for highly stressed structural parts. Applications include aircraft fittings, gears and shafts, fuse parts, meter shafts and gears, missile parts, regulating valve parts, worm gears, keys, and various other commercial aircraft, aerospace and defense equipment and components.

Machineability and Weldability :
7075 in the T6 condition has a machinability rating of 80% when compared to 2011 at 100%. Aluminum 7075 is can be formed in the annealed condition. and can be forged in the temperature range of 700 Degrees to 900 Degrees F. It should be solution heat treated following forging. Aluminum7075 is a very poor choice for welding. Resistance welding is the only preferred method of joining 7075. Gas welding should be avoided and the use of arc welding may result in degradation of corrosion resistance.

Heat Treating :
7075 may be solution annealed at 900 Degrees F for 2 hours at temperature, followed by a water quench. The alloy may then be given a precipitation hardening (aging) heat treatment.

Annealing :
Annealing is done at 775 Degrees F, holding for 3 hours at temperature. Controlled cooling at 50F per hour should then be used down to 500F from which it can be air cooled.

Aging :
Precipitation strengthening (aging) is done at 250 Degrees F for 24 hours and air cooled for T6. The T73 temper requires heating to 225 Degrees F for 8 hours, followed by 24 hours at 325 Degrees F and then air cool.

Analysis :

Manganese (Mn)

Silicon (Si)

Chromium (Cr)

Copper (Cu)

Iron (Fe)

Zinc (Zn)

Aluminum (Al)

Magnesium (Mg)

Titanium (Ti)

Other (Oth)

Each/Total

0.3

0.4

0.18-0.3

1.2-2

0.5

5.1-6.1

Remainder

2.1-2.9

0.2

0.005/0.15

7075 Drawn Bar Conforms to AMS 4122, QQ-A-225/9 7075 Extruded Bar Conforms to AMS 4154, QQ-A-200/11 7075 Bare Plate Conforms to AMS 4045, QQ-A-250/12

Mechanical Properties :

Condition

Tensile Strength (PSI)

Yield Strength (PSI)

Shear Strength (PSI)

Elongation in 2"

Brinell Hardness

7075-T6, T651 (Bare)

83,000

73,000

48,000

11

150

The above values are average and may be considered as representative of 7075 Aluminum Bar in tempers shown
Tolerances :

Cold Rounds


Finished Diameter (in)

Tolerance (in)

.375 to .500

0.0015

.501 to 1.000

0.0020

1.001 to 1.500

0.0025

1.501 to 2.000

0.0040

2.001 to 3.000

0.0060

3.001 to 3.499

0.0080

3.500 to 5.000

0.0120

Cold Finished Flats



Thickness

Thickness

Width




.125 to .500

0.0020

0.0020

.501 to .750

0.0025

0.0025

.751 to 1.000

0.0030

0.0030

1.001 to 1.500

0.0050

0.0050

2.001 to 3.000

0.0080

0.0080

Extruded - Round, Square, Flat



Cross-sectional dimensions(in)

Under .125

0.006

.125 to under .250

0.007

.250 to under .500

0.008

.500 to under .750

0.009

.750 to under 1.0

0.010

1.0 to under 1.5

0.012

1.5 to under 2.0

0.014

2.0 to under 4.0

0.024

4.0 to under 6.0

0.034

6.0 to under 8.0

0.044

8.0 to under 10.0

0.054

Temper : 7075-0, 7075-T6, 7075-T651, 7075-T6511, 7075-T73, 7075-T7351, 7075-T73511

Specification:

  • QQ-A-225/9, QQ-A-200/11, AMS 4123, AMS 4124, AMS 4154, AMS 4166, AMS 4167, AMS 4168, AMS 4169, AMS 4186, AMS 4187, AMS 4147
  • 7075-T651 Cold Finish Bar Per QQ-A-225/9, AMS-QQ-A-225/9, ASTM-B-211, AMS 4123
  • 7075-T6 Extruded Bar Per QQ-A-200/11, AMS-QQ-A-200/11, ASTM-B-211, AMS 4154
  • 7075-T6511 Extruded Bar Per QQ-A-200/11, AMS-QQ-A-200/11, ASTM-B-211, AMS 4169
  • 7075-T73 Cold Finish Bar Per QQ-A-225/9, AMS-QQ-A-225/9, ASTM-B-211, AMS 4122
  • 7075-T7351 Cold Finish Per QQ-A-225/9, AMS-QQ-A-225/9, ASTM-B-211, AMS 4124
  • 7075-T73511 Extruded Bar Per QQ-A-200/11, AMS-QQ-A-200/11, ASTM-B-221, AMS 4167

7075 Aluminum Tube

7075-T6 Aluminum Tube Per WW-T-700/7

  • 1-1/4" OD x 0.065" x 12 FT
  • 1-1/8" OD X 0.156" x 12 FT

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