Aluminum Alloys 7000 Series

7000 series - Zinc is the major alloying element in this group, and when coupled with a smaller percentage of magnesium results in heat-treatable alloys of very high strength. Usually other elements such as copper and chromium are also added in small quantities. Outstanding member of this group is 7075, which is among the highest strength alloys available and is used in air-frame structures and for highly stressed parts.

(1) (2)
CHEMICAL COMPOSITION LIMITS OF WROUGHT ALUMINUM ALLOYS 　

SILICON

IRON

COPPER

MANGANESE

MAGNESIUM

CHROMIUM

NICKEL

ZINC

TITANIUM

OTHER(3)

ALUMINUM

　 　 　

Each

Total

Min. (4)

0.4

0.5

1.2-2.0

0.30

2.1-2.9

0.18-0.35

-

5.1-6.1

0.20(22)

0.05

0.15

Remainder

 

(1) Composition in percent maximum unless shown as a range or a minimum.

(2) For purposes of determining conformance to these limits, an observed value or a calculated value obtained
from analysis is rounded off to the nearest unit in the last right-hand place of figures used in expressing the
specified limit, in accordance with AN Standard Rules for Rounding Off Numerical Values (ANSI Z25.1).

(3) Analysis is regularly made only for the elements for which specific limits are shown, except for unalloyed aluminum. If, however, the presence of other elements is suspected to be, or in the course of routine analysis is indicated to be in excess of the specified limits, further analysis is made to determine that these other elements
are not in excess of the amount specified.

(4) The aluminum content for unalloyed aluminum not made by a refining process is the difference between
100.00 percent and the sum of all other metallic elements present in amounts of 0.010 percent or more each,
expressed to the second decimal.

(22) Zinconium plus titanium 0.25 percent maximum.

 

Typical mechanical Properties 7075-T651

Tensile Strength, ksi 83
Yield Strength, ksi 73
Elongation (in 2 inches - 1/2” diameter specimen) 11%
Elongation (in 2 inches - 1/16” thick specimen) 11%
Hardness (500 kg load 10mm ball) 150
Shear ksi 48
Fatigue ksi 23
Modulus ksi x103 of Elasticity 10.4

　

Typical Physical Properties 7075-T651

Electrical Conductivity (% IACS) 3.3
Electrical Resistivity Microhm-cm 5.2
Coefficient of Thermal Expansion

-58 to 68℉ 13.1 x 10-6
68 to 212℉ 13.1 x 10-6
68 to 392℉ 13.1 x 10-6
68 to 572℉ 13.1 x 10-6

Specific Gravity 2.8
Density (lb per cu in.) 0.101
Thermal Conductivity (Btu per in. per sq. ft)
At 75℉ 900
At 25℃ (CGS units) 31
Melting Range (℉) 890-1175

　

ALUMINUM SQUARE BAR

COLD FINISHED EXTRUDED: Fed. Spec. QQ-A-225/9, Color Ends Black
ROLLED EXTRUDED: Fed. Spec. QQ-A-200/11, Color Ends Black/White Stripe

7075-T6/T651 & T6511 　

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

　

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

7/16

.226

2.71

　

x

　

2-1/2

7.50

90.00

x

x

1/2

.299

3.59

x

　 　

2-3/4

9.07

108.84

x

　

3/4

.674

8.09

x

　 　

3

10.80

129.60

x

x

1

1.20

14.40

x

x

　

3-1/4

13.06

156.72

x

　

1-1/4

1.87

22.44

x

x

　

3-1/2

14.70

176.40

x

x

1-1/2

2.70

32.40

x

x

　

4

19.20

230.40

x

x

1-3/4

3.67

44.04

x

x

　

4-1/2

24.30

291.60

　

x

2

4.80

57.60

x

x

　

5

30.00

360.00

　

x

2-1/4

6.13

73.56

x

　 　

6

43.20

518.40

　

x

　

CF - Cold Finished
E - Extruded

　

ALUMINUM RECTANGULAR BAR

COLD FINISHED EXTRUDED: Fed. Spec. QQ-A-225/9, Color Ends Black
ROLLED EXTRUDED: Fed. Spec. QQ-A-200/11, Color Ends Black/White Stripe

7075-T6/T651 & T6511

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

 　

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

3/16 x 1

.225

2.70

x

 　 　

1 x 8

9.60

115.20

x

x

1/4 x 1/2

.150

1.80

x

 　 　

1-1/4 x 1-1/2

2.25

27.00

x

 　

1/4 x 1

.300

3.60

x

 　 　

1-1/4 x 1-3/4

2.65

31.80

 　

x

1/4 x 1-1/2

.450

5.40

x

x

 　

1-1/4 x 2

3.00

36.00

x

x

1/4 x 2

.587

7.04

x

 　 　

1-1/4 x 2-1/4

3.37

40.44

x

 　

3/8 x 1

.450

5.40

x

 　 　

1-1/4 x 2-1/2

3.75

45.00

x

x

3/8 x 1-1/2

.676

8.11

x

 　 　

1-1/4 x 3

4.50

54.00

x

x

1/2 x 3/4

.450

5.40

x

 　 　

1-1/4 x 4

6.00

72.00

x

x

1/2 x 1

.600

7.20

x

 　 　

1-1/4 x 5

7.50

90.00

 　

x

1/2 x 1-1/2

.900

10.80

x

 　 　

1-1/2 x 2

3.60

43.20

x

x

1/2 x 2

1.20

14.40

x

 　 　

1-1/2 x 2-1/2

4.50

54.00

x

x

1/2 x 2-1/2

1.50

18.00

x

 　 　

1-1/2 x 3

5.40

64.80

x

x

1/2 x 3

1.80

21.60

x

 　 　

1-1/2 x 3-1/2

6.17

74.04

x

x

1/2 x 4

2.40

28.80

 　

x

 　

1-1/2 x 4

7.20

86.40

x

x

5/8 x 1-1/4

.937

11.24

 　

x

 　

1-1/2 x 4-1/2

8.21

98.52

x

 　

5/8 x 1-1/2

1.12

13.44

x

 　 　

1-1/2 x 5

9.00

108.00

x

 　

5/8 x 7/8

.662

7.94

 　

x

 　

1-1/2 x 6

10.80

129.60

x

x

3/4 x 1

.900

10.80

x

 　 　

1-3/4 x 2

4.20

50.40

 　

x

3/4 x 1-1/2

1.25

16.20

x

 　 　

1-3/4 x 2-1/2

5.41

64.89

x

x

3/4 x 1-3/4

1.57

18.80

x

x

 　

1-3/4 x 3

6.30

75.60

x

x

3/4 x 2

1.80

21.60

x

x

 　

1-3/4 x 4

8.40

100.80

x

x

3/4 x 3

2.70

32.40

x

 　 　

1-3/4 x 4-1/2

9.73

116.80

 　

x

3/4 x 4

3.60

43.20

 　

x

 　

2 x 2-1/4

5.40

64.80

 　

x

3/4 x 6

5.40

64.80

x

 　 　

2 x 2-1/2

6.00

72.00

x

x

7/8 x 1-1/4

1.31

15.72

 　

x

 　

2 x 2-3/4

6.60

79.20

 　

x

1 x 1-1/4

1.50

18.00

x

 　 　

2 x 3

7.20

86.40

x

x

1 x 1-1/2

1.80

21.60

x

x

 　

2 x 3-1/2

8.40

100.80

x

x

1 x 1-3/4

2.10

25.20

x

 　 　

2 x 4

9.60

115.20

x

x

1 x 2

2.40

28.80

x

x

 　

2 x 5

12.00

144.00

x

x

1 x 2-1/2

3.00

36.00

x

x

 　

2 x 6

14.40

172.80

x

x

1 x 3

3.60

43.20

x

x

 　

2-1/4 x 2-1/2

6.76

81.12

x

 　

1 x 3-1/2

4.10

50.40

x

 　 　

2-1/4 x 2-3/4

7.43

89.16

 　

x

1 x 4

4.80

57.60

x

 　 　

2-1/4 x 3

8.10

97.20

 　

x

1 x 6

7.20

86.40

 　

x

 　

2-1/4 x 4

10.80

129.60

x

x

　

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

 　

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

2-1/2 x 2-3/4

8.26

99.12

 　

x

 　

3 x 6

21.60

259.20

x

x

2-1/2 x 3

9.00

108.00

x

x

 　

3 x 6-1/2

23.40

280.80

x

 　

2-1/2 x 3-1/4

9.75

117.00

 　

x

 　

3 x 7-1/2

27.00

324.00

 　

x

2-1/2 x 3-1/2

10.50

126.00

 　

x

 　

3 x 8

28.80

345.60

 　

x

2-1/2 x 3-3/4

11.25

135.00

 　

x

 　

3-1/2 x 4

16.80

201.60

 　

x

2-1/2 x 4

12.00

144.00

x

x

 　

3-1/2 x 4-1/2

18.90

226.80

 　

x

2-1/2 x 4-1/2

13.50

162.00

x

x

 　

3-1/2 x 5

21.00

252.00

x

x

2-1/2 x 5

15.00

180.00

x

x

 　

3-1/2 x 6-1/2

27.30

327.60

 　

x

2-1/2 x 6

18.00

216.00

x

x

 　

3-1/2 x 11

46.20

554.40

 　

x

2-1/2 x 9

27.00

324.00

 　

x

 　

4 x 4-1/2

21.60

259.20

x

 　

2-3/4 x 3

9.90

118.80

 　

x

 　

4 x 5

24.00

288.00

x

x

2-3/4 x 3-1/4

10.70

128.76

 　

x

 　

4 x 6

28.80

345.60

 　

x

2-3/4 x 4

13.20

158.40

x

x

 　

4 x 8

38.40

460.80

 　

x

2-3/4 x 4-1/4

14.00

168.00

 　

x

 　

5 x 6

36.00

432.00

 　

x

3 x 3-1/2

12.60

151.20

 　

x

 　

5 x 8

48.00

576.00

 　

x

3 x 4

14.40

172.80

x

x

 　

5-1/2 x 6

39.60

475.20

x

 　

3 x 4-1/2

16.20

194.40

x

x

 　

6 x 8

57.60

691.20

 　

x

3 x 5

18.00

216.00

x

x

 　 　

　 　

　

CF - Cold Finished
E - Extruded

　

ALUMINUM ROUND BAR

COLD FINISHED EXTRUDED: Fed. Spec. QQ-A-225/9, Color Ends Black
ROLLED EXTRUDED: Fed. Spec. QQ-A-200/11, Color Ends Black/White Stripe

7075-T6/T651 & T6511

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

 　

Size In

Inches

Lbs.

Per Ft.

12 Ft.

Bar

CF

E

3/16

.033

.396

x

 　 　

2-3/8

5.41

64.92

x

 　

1/4

.059

.709

x

 　 　

2-1/2

5.99

71.88

x

x

5/16

.092

1.10

x

 　 　

2-5/8

6.60

79.20

x

 　

3/8

.134

1.61

x

 　 　

2-3/4

7.29

87.48

x

x

7/16

.182

2.19

x

 　 　

2-7/8

7.91

94.92

x

 　

1/2

.233

2.86

x

x

 　

3

8.60

103.20

x

x

9/16

.301

3.61

x

 　 　

3-1/8

9.28

111.36

x

 　

5/8

.371

4.45

x

 　 　

3-1/4

10.09

121.08

x

x

11/16

.436

5.23

x

 　 　

3-1/2

11.69

140.28

x

x

3/4

.535

6.42

x

x

 　

3-5/8

12.36

148.32

x

 　

7/8

.730

8.70

x

 　 　

3-3/4

13.41

160.92

x

x

1

.954

11.45

x

x

 　

4

15.25

183.00

x

x

1-1/8

1.25

15.00

x

x

 　

4-1/4

17.10

205.20

x

 　

1-3/16

1.33

15.96

x

 　 　

4-1/2

19.29

231.48

x

x

1-1/4

1.53

18.36

x

x

 　

4-3/4

21.45

257.40

x

 　

1-3/8

1.84

22.08

x

 　 　

5

23.76

285.12

x

x

1-1/2

2.19

26.28

x

x

 　

5-1/4

25.60

307.20

x

 　

1-5/8

2.56

30.72

x

 　 　

5-1/2

28.10

337.20

x

 　

1-3/4

2.96

35.52

x

x

 　

6

33.22

398.64

x

x

1-7/8

3.39

40.68

x

 　 　

6-1/2

40.16

481.89

x

x

2

3.85

46.20

x

x

 　

7

46.55

558.60

x

x

2-1/8

4.29

51.48

x

 　 　

7-1/2

53.54

642.48

x

 　

2-1/4

4.86

58.32

x

x

 　

8

60.92

731.04

x

x

　

CF - Cold Finished/Rolled
E - Extruded

　

ALUMINUM SHEET
(STENCILED AND INTERLEAVED)

BARE: Fed. Spec. QQ-A-250/12
ALCLAD: Fed. Spec. QQ-A-250/13

7075-T6

Thickness & Size

In Inches

Pounds Per

Square Foot

Pounds Per

Plate

Bare

Alclad

.020 x 36 x 144

.292

10.50

　

x

.020 x 48 x 144

.292

14.00

　

x

.025 x 48 x 144

.365

17.50

　

x

.032 x 48 x 144

.467

22.41

x

x

.040 x 48 x 144

.583

28.01

x

x

.050 x 48 x 144

.729

35.01

x

x

.063 x 48 x 144

.919

44.11

x

x

.071 x 48 x 144

1.036

49.71

x

x

.080 x 48 x 144

1.167

56.01

x

x

.090 x 48 x 144

1.313

63.02

x

x

.100 x 48 x 144

1.459

70.02

x

x

.125 x 48 x 144

1.823

87.52

x

x

.160 x 48 x 144

2.334

112.03

x

x

.190 x 48 x 144

2.772

133.04

x

x

　

X - Denotes Items Stocked

 

7075

Characteristics

Typical Uses

A heat treatable alloy with very high strength and hardness.

Used primarily for aircraft and structural applications or wherever strength and light weight are of primary importance.

　

　

ALUMINUM PLATE
(STENCILED AND INTERLEAVED)

BARE: Fed. Spec. QQ-A-250/12

7075-T651

Thickness & Size

In Inches

Pounds Per

Square Foot

Pounds Per

Plate

.250 x 48 x 144

3.647

175.05

.313 x 48 x 144

4.565

218.30

.375 x 48 x 144

5.470

262.57

.500 x 48 x 128

7.290

311.04

.500 x 48 x 144

7.290

350.09

.625 x 36 x 96

9.120

218.80

.750 x 48 X 144

10.940

525.14

.875 x 36 x 96

12.760

306.33

1.000 x 36 x 96

14.590

350.09

1.000 x 48 x 144

14.590

700.19

1.250 x 24 x 72

18.230

218.81

1.250 x 36 X 96

18.230

875.23

1.500 x 24 x 144

21.880

262.57

1.500 x 36 x 96

21.880

525.14

1.500 x 48 x 144

21.880

1050.27

1.750 x 36 x 96

25.530

612.66

1.875 x 24 x 72

27.350

328.21

2.000 x 48 x 144

29.170

350.09

2.000 x 36 x 96

29.170

700.19

2.000 x 48 x 144

29.170

1400.37

2.250 x 48 x 144

32.820

1575.42

2.500 x 36 x 96

36.470

875.23

2.500 x 48 x 144

36.470

1750.46

3.000 x 36 x 96

43.760

1050.28

3.000 x 48 x 144

43.760

2100.56

3.500 x 48 x 144

51.060

2450.64

4.000 x 48 x 144

58.350

2800.74

4.500 x 48 x 144

65.640

3150.82

5.000 x 48 x 144

72.940

3500.93

5.500 x 48 x 144

79.990

3839.62

6.000 x 48 x 144

87.520

4201.06