AA Standards Grade 7075 O

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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,Matmatch.

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

PropertyValueCondition

Density

2.8 g/cm³

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O

2.81 g/cm³

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O

3.1 g/cm³

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O

Mechanical

PropertyValueConditionRelated StandardsComment

Compressive modulus

72.4 MPa

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O

Elastic modulus

71.0 GPa

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O

72.0 GPa

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O

72 GPa

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O

Elongation

8.0 %

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O

AA Standards, ASTM B210

A50

9.0 %

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O

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

A100

10.0 %

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O

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

A50

13.0 %

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O

14.0 %

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O

AA Standards

A100

16 %

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O

17.0 %

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O

AA Standards

A50

17.0 %

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O

Hardness, Brinell

60.0 [-]

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O

AA Standards

60.0 [-]

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O

500 kg load, 10 mm ball

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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O

Shear modulus

26.9 GPa

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O

Shear strength

152.0 MPa

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O

Tensile strength

228.0 MPa

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O

230.0 MPa

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O

AA Standards

230 MPa

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O

275.0 MPa

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O

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

Yield strength

103.0 MPa

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O

105.0 MPa

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O

AA Standards

RP02

105 MPa

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O

RP02

120.0 MPa

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O

145.0 MPa

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O

AA Standards, ASTM B209, ASTM B210

RP02

165.0 MPa

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O

AA Standards, ASTM B221, ASTM B241

RP02

Thermal

PropertyValueCondition

Coefficient of thermal expansion

2.3e-05 1/K

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O

2.34e-05 1/K

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O

Melting point

480.0 °C

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O

Specific heat capacity

910.0 J/(kg·K)

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O

960.0 J/(kg·K)

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O

Thermal conductivity

130.0 W/(m·K)

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O

Electrical

PropertyValueComment

Electrical conductivity

18000000.0 - 34000000.0 S/m

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Typical for Wrought 7000 Series Aluminium

Electrical resistivity

2.9e-08 - 5.6e-08 Ω·m

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Typical for Wrought 7000 Series Aluminium

Chemical properties

PropertyValueConditionRelated Standards

Aluminium

86.9 - 91.4 %

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O

Chromium

0.18 - 0.28 %

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O

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

Copper

1.2 - 2.0 %

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O

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

Iron

0.50 %

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O

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

0.5 %

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O

Magnesium

2.1 - 2.9 %

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O

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

Manganese

0.3 %

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O

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

Other

0.15 %

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O

Silicon

0.4 %

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O

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

Titanium

0.2 %

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O

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

Zinc

5.1 - 6.1 %

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O

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

Zirconium

0.25 %

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O

Technological properties

Property
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