AA Standards Grade 7075 T76

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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,WroughtAl_ElectricalResistivity.

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

3.1 g/cm³

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T76

Mechanical

PropertyValueConditionRelated StandardsComment

Elastic modulus

72.0 GPa

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T76

Elongation

8.0 %

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T76

AA Standards, ASTM B209

A50

7.0 %

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T76

AA Standards, ASTM B221

A50

6.0 %

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T76

AA Standards, ASTM B221

A100

8.1 %

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T76

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

26.4 - 27.1 GPa

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Typical for Wrought 7000 Series Aluminium

Tensile strength

500.0 MPa

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T76

AA Standards, ASTM B209, ASTM B221

510.0 MPa

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T76

AA Standards, ASTM B221

515.0 MPa

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T76

AA Standards, ASTM B221

570.0 MPa

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T76

Yield strength

425.0 MPa

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T76

AA Standards, ASTM B209

RP02

440.0 MPa

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T76

AA Standards, ASTM B221

RP02

435.0 MPa

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T76

AA Standards, ASTM B221

RP02

450.0 MPa

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T76

AA Standards, ASTM B221

RP02

490.0 MPa

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T76

Thermal

PropertyValueCondition

Coefficient of thermal expansion

2.3e-05 1/K

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T76

Melting point

480.0 °C

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T76

Specific heat capacity

910.0 J/(kg·K)

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T76

Thermal conductivity

130.0 W/(m·K)

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Electrical

PropertyValueConditionComment

Electrical conductivity

22300000 S/m

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T76

Typical/derived value

Electrical resistivity

4.48e-08 Ω·m

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Typical value

Specific Electrical conductivity

38.5 % IACS

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Typical value

Chemical properties

PropertyValueConditionRelated Standards

Aluminium

86.9 - 91.4 %

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T76

Chromium

0.18 - 0.28 %

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T76

AA Standards, ASTM B209, ASTM B221

Copper

1.2 - 2.0 %

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AA Standards, ASTM B209, ASTM B221

Iron

0.50 %

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T76

AA Standards, ASTM B209, ASTM B221

0.5 %

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T76

Magnesium

2.1 - 2.9 %

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T76

AA Standards, ASTM B209, ASTM B221

Manganese

0.3 %

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T76

AA Standards, ASTM B209, ASTM B221

Other

0.15 %

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T76

Silicon

0.4 %

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T76

AA Standards, ASTM B209, ASTM B221

Titanium

0.2 %

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T76

AA Standards, ASTM B209, ASTM B221

Zinc

5.1 - 6.1 %

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T76

AA Standards, ASTM B209, ASTM B221

Zirconium

0.25 %

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T76

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