AA Standards Grade 7075 T73

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Description

AA 7075 is a high-strength alloy that offers good stress-corrosion cracking resistance. Known as a mainstay in the aerospace industry since it was introduced, Aluminum 7075 brings moderate toughness as well as an excellent strength-to-weight ratio. It is also important to note that at sub-zero temperatures Aluminum 7075 increases in strength.

Related Standards

Equivalent Materials

This material data has been provided by AluKey,MakeItFrom.com,ASM Handbook Volume 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials,WroughtAl_ElectricalResistivity,Righton Blackburns.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueConditionShape

Density

2.81 g/cm³

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2.81 g/cm³

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Bar

3.1 g/cm³

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Mechanical

PropertyTemperatureValueConditionShapeRelated StandardsComment

Compressive modulus

72.4 MPa

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Elastic modulus

72.0 GPa

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Bar

Elongation

-195 °C

14 %

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Elongation in 50 mm

-80 °C

14 %

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Elongation in 50 mm

1.0 %

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AA Standards, ASTM B247

A100

2.0 %

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AA Standards, ASTM B247

A50

2.0 %

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AA Standards, ASTM B247

A100

3.0 %

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AA Standards, ASTM B247

A50

3.0 %

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AA Standards, ASTM B247

A100

5.0 %

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AA Standards, ASTM B247

A100

6.0 %

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AA Standards, ASTM B221, ASTM B247

A100

6.3 %

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7.0 %

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AA Standards, ASTM B221, ASTM B241, ASTM B247

A50

7.0 %

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AA Standards, ASTM B211, ASTM B221, ASTM B241

A100

7.0 - 8.0 %

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Bar

8.0 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241

A50

9.0 %

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AA Standards, ASTM B210, ASTM B211, ASTM B316

A100

10.0 %

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AA Standards, ASTM B210, ASTM B211

A50

0 °C

13 %

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Elongation in 50 mm

24 °C

13 %

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Elongation in 50 mm

100 °C

15 %

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Elongation in 50 mm

150 °C

30 %

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Elongation in 50 mm

205 °C

55 %

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Elongation in 50 mm

260 °C

65 %

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Elongation in 50 mm

315 °C

70 %

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Elongation in 50 mm

370 °C

70 %

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Elongation in 50 mm

Fatigue strength

159 MPa

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for 5x10⁸ cycles

Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 7000 Series Aluminium

Poisson's ratio

0.33 [-]

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Typical for Wrought 7000 Series Aluminium

Shear modulus

26.9 GPa

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Tensile strength

-195 °C

635 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

-80 °C

545 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

395.0 MPa

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AA Standards, ASTM B247

400.0 MPa

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AA Standards, ASTM B247

405.0 MPa

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AA Standards, ASTM B247

415.0 MPa

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AA Standards, ASTM B247

420.0 MPa

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AA Standards, ASTM B247

425.0 MPa

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AA Standards, ASTM B247

435.0 MPa

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AA Standards, ASTM B247

440.0 MPa

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AA Standards, ASTM B211, ASTM B247

450.0 MPa

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AA Standards, ASTM B221

455.0 MPa

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AA Standards, ASTM B210, ASTM B211, ASTM B247

460.0 MPa

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AA Standards, ASTM B209

469.0 - 483.0 MPa

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Bar

470.0 MPa

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AA Standards, ASTM B211, ASTM B221, ASTM B241, ASTM B316

475.0 MPa

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AA Standards, ASTM B221, ASTM B241

485.0 MPa

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AA Standards, ASTM B221, ASTM B241

500.0 MPa

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0 °C

525 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

24 °C

503 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

100 °C

435 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

150 °C

215 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

205 °C

110 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

260 °C

75 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

315 °C

55 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

370 °C

40 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

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Yield strength

-196 °C

496 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

-80 °C

462 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

-28 °C

448 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

340.0 MPa

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AA Standards, ASTM B247

RP02

345.0 MPa

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AA Standards, ASTM B247

RP02

350.0 MPa

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AA Standards, ASTM B247

RP02

360.0 MPa

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AA Standards, ASTM B247

RP02

365.0 MPa

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AA Standards, ASTM B247

RP02

370.0 MPa

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AA Standards, ASTM B247

RP02

380.0 MPa

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AA Standards, ASTM B211, ASTM B221, ASTM B247

RP02

385.0 MPa

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AA Standards, ASTM B209, ASTM B210, ASTM B247, ASTM B316

RP02

393.0 - 420.0 MPa

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Bar

RP02

395.0 MPa

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AA Standards, ASTM B221

RP02

400.0 MPa

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AA Standards, ASTM B221, ASTM B241

RP02

405.0 MPa

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AA Standards, ASTM B221, ASTM B241

RP02

420.0 MPa

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AA Standards, ASTM B221, ASTM B241

RP02

420.0 MPa

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425.0 MPa

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AA Standards, ASTM B211

RP02

24 °C

434 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

100 °C

400 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

149 °C

186 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

204 °C

90 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

260 °C

62 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

316 °C

45 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

371 °C

32 MPa

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up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture, RP02

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Thermal

PropertyValueConditionShape

Coefficient of thermal expansion

2.3e-05 1/K

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2.35e-05 1/K

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Bar

Melting point

480.0 °C

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635.0 °C

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Bar

Specific heat capacity

910.0 J/(kg·K)

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Thermal conductivity

130.0 W/(m·K)

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134.0 - 160.0 W/(m·K)

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Bar

Electrical

PropertyValueConditionShapeComment

Electrical conductivity

23000000 S/m

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Typical/derived value

Electrical resistivity

4.3099999999999996e-08 Ω·m

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Typical value

4.31e-08 Ω·m

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Bar

Specific Electrical conductivity

40.0 % IACS

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Typical value

Chemical properties

PropertyValueConditionRelated StandardsShapeComment

Aluminium

86.9 - 91.4 %

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Chromium

0.18 - 0.28 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Copper

1.2 - 2.0 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Iron

0.50 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

0.5 %

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Bar

Magnesium

2.1 - 2.9 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Manganese

0.3 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Other

0.15 %

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Bar

Total

Silicon

0.4 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Titanium

0.2 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Zinc

5.1 - 6.1 %

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AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B247, ASTM B316

Bar

Zirconium

0.25 %

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Technological properties

Property
Application areas

Aerospace

Brazing

general: no brazing is known or developed

Corrosion properties

Stress corrosion cracking: Operational damage in areas with tensile stresses transverse to the grain structure, limited damage to laboratory samples, general: good, without protection in industrial or seawater atmosphere

General machinability

General: poor (O), good to acceptable

Workability

general (condition): not suitable