ASTM B241 Grade 7075 O

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Description

ASTM 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 ASTM.

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.

Ashby charts

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Properties

General

PropertyValueComment

Density

2.7 - 2.85 g/cm³

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Typical for Wrought 7000 Series Aluminium

Mechanical

PropertyTemperatureValueConditionRelated StandardsShapeComment

Elastic modulus

69.0 - 72.0 GPa

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Typical for Wrought 7000 Series Aluminium

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Elongation

9.0 %

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O

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Elongation A50

23.0 °C

10 %

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Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 7000 Series Aluminium

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Poisson's ratio

0.33 [-]

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Typical for Wrought 7000 Series Aluminium

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Shear modulus

26.4 - 27.1 GPa

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Tensile strength

275.0

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Yield strength Rp0.2

23.0 °C

165 MPa

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Thermal

PropertyValueComment

Coefficient of thermal expansion

2.1e-05 - 2.4e-05 1/K

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Typical for Wrought 7000 Series Aluminium

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Melting point

465.0 - 655.0 °C

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Specific heat capacity

795.0 - 1050.0 J/(kg·K)

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Thermal conductivity

121.0 - 170.0 W/(m·K)

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Electrical

PropertyValueComment

Electrical conductivity

18000000.0 - 34000000.0 S/m

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Electrical resistivity

2.9e-08 - 5.6e-08 Ω·m

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Chemical properties

PropertyValueConditionRelated StandardsShape

Chromium

0.18 - 0.28 %

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O

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Copper

1.2 - 2.0 %

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O

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Iron

0.5

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Magnesium

2.1 - 2.9 %

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Manganese

0.3

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O

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Silicon

0.4

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Titanium

0.2

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Zinc

5.1 - 6.1 %

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Technological properties

Property
Brazing

Excellent