AA Standards Grade 7075 T6

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Description

A high strength aluminium alloy offering good corrosion resistance.

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Properties

General

Density

ρ

2.8 - 3.1 g/cm³ at 23 °C

Dimension

Dimensions

Wanddicke

Mechanical

Bending Fatigue Strength

SNf

160 MPa at 23 °C

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Compressive modulus

Ecomp

72.4 MPa at 23 °C

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Elastic modulus

E

71 - 72 GPa at 23 °C

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Elongation

A

9 % at -195 °C

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Elongation in 50 mm

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Elongation A100

A100

1 - 9 % at 23 °C

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Elongation A50

A50

2 - 11 % at 23 °C

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Fatigue strength

SNf

159 MPa at 23 °C

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for 5x10⁸ cycles

Hardness, Brinell

HB

150 [-] at 23 °C

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500 kg load, 10 mm ball

Plane-Strain Fracture Toughnes

KIC

22 - 35 MPa·√m at 23 °C

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Typical for Wrought 7000 Series Aluminium

Poisson's ratio

ν

0.33 [-] at 23 °C

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Shear modulus

G

26.9 GPa at 23 °C

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Shear strength

τ

331 MPa at 23 °C

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Tensile strength

Rm

703 MPa at -195 °C

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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

YS

470 - 505 MPa at 23 °C

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Yield strength Rp0.2

Rp0.2

634 MPa at -196 °C

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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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Thermal

Coefficient of thermal expansion

α

2.36E-5 1/K at 20 °C

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Melting point

Tm

475 - 635 °C

Specific heat capacity

cp

910 - 960 J/(kg·K) at 23 °C

Thermal conductivity

λ

130 W/(m·K) at 23 °C

Electrical

Electrical conductivity

σel

1.90E+7 S/m at 23 °C

Typical value

Electrical resistivity

ρel

4.31E-8 - 5.26E-8 Ω·m at 23 °C

Typical value

Specific Electrical conductivity

33 % IACS

Typical/Derived value

Chemical properties

Element

Weight %

Comment

Al

86.9 - 91.4 %

Balance

Zn

5.1 - 6.1 %

Mg

2.1 - 2.9 %

Cu

1.2 - 2 %

Cr

0.18 - 0.28 %

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Technological properties

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

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

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.