AA Standards Grade 2024 T4

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Description

Aluminum AA 2024, known for its use in aircraft industry, is an alloy that offers excellent strength. When in the annealed condition it is readily formed and has good machinability. Though it has a relatively low level of corrosion resistance, it can be machined to a high finish.

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.

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

PropertyValueConditionRelated Standards

Density

2.78 g/cm³

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T4

AA Standards, ASTM B209, ASTM B211

3.0 g/cm³

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T4

2.78 g/cm³

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T4

Mechanical

PropertyTemperatureValueConditionRelated StandardsComment

Bending Fatigue Strength

140.0 MPa

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T4

AA Standards

Elastic modulus

73.0 GPa

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T4

AA Standards, ASTM B209, ASTM B211

73 GPa

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T4

Elongation

20.0 %

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T4

AA Standards

A50

12.0 %

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T4

AA Standards, ASTM B209

A50

15.0 %

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T4

AA Standards, ASTM B209

A50

10.0 %

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T4

AA Standards, ASTM B211

A50

17.0 %

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T4

AA Standards

A100

9.0 %

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T4

AA Standards, ASTM B211

A100

16.0 %

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T4

370 °C

100 %

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T4

Elongation in 50 mm

315 °C

75 %

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T4

Elongation in 50 mm

260 °C

55 %

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T4

Elongation in 50 mm

205 °C

27 %

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T4

Elongation in 50 mm

150 °C

17 %

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T4

Elongation in 50 mm

100 °C, 24 °C, 0 °C, -80 °C, -195 °C

19 %

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T4

Elongation in 50 mm

Hardness, Brinell

120.0 [-]

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T4

AA Standards

Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 2000 Series Aluminium

Poisson's ratio

0.33 [-]

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Typical for Wrought 2000 Series Aluminium

Shear modulus

28.0 GPa

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T4

Tensile strength

472.0 MPa

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T4

AA Standards

425.0 MPa

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T4

AA Standards, ASTM B209, ASTM B211

480.0 MPa

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T4

370 °C

35 MPa

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T4

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

52 MPa

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T4

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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T4

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

180 MPa

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T4

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

310 MPa

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T4

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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T4

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

470 MPa

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T4

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

0 °C

475 MPa

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T4

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

490 MPa

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T4

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

-195 °C

580 MPa

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T4

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

325.0 MPa

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T4

AA Standards

RP02

275.0 MPa

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T4

AA Standards, ASTM B209, ASTM B211

RP02

290.0 MPa

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T4

AA Standards, ASTM B211

RP02

260.0 MPa

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T4

AA Standards, ASTM B211

RP02

310.0 MPa

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T4

AA Standards, ASTM B211

RP02

370 °C

28 MPa

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T4

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

315 °C

41 MPa

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T4

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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T4

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

205 °C

131 MPa

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T4

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

150 °C

248 MPa

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T4

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

310 MPa

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T4

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

24 °C, 0 °C

324 MPa

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T4

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

338 MPa

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T4

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

320.0 MPa

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T4

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Thermal

PropertyTemperatureValueConditionRelated Standards

Coefficient of thermal expansion

2.3e-05 1/K

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T4

100 °C, 20 °C

2.3199999999999998e-05 1/K

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T4

AA Standards, ASTM B209, ASTM B211

Melting point

505.0 - 635.0 °C

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T4

AA Standards, ASTM B209, ASTM B211

500.0 °C

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T4

Specific heat capacity

870.0 J/(kg·K)

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T4

Thermal conductivity

121.0 - 193.0 W/(m·K)

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T4

AA Standards, ASTM B209, ASTM B211

120.0 W/(m·K)

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T4

Electrical

PropertyValueConditionRelated StandardsComment

Electrical conductivity

17000000.0 - 29000000.0 S/m

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T4

AA Standards, ASTM B209, ASTM B211

17000000 S/m

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T4

Typical value

Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

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T4

AA Standards, ASTM B209, ASTM B211

5.7e-08 Ω·m

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T4

Typical value

Specific Electrical conductivity

29.0 % IACS

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T4

Typical/Derived value

Chemical properties

PropertyValueConditionRelated Standards

Aluminium

90.7 - 94.7 %

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T4

Chromium

0.1 %

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T4

AA Standards, ASTM B209, ASTM B211

Copper

3.8 - 4.9 %

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T4

AA Standards, ASTM B209, ASTM B211

Iron

0.50 %

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T4

AA Standards, ASTM B209, ASTM B211

0.5 %

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T4

Magnesium

1.2 - 1.8 %

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T4

AA Standards, ASTM B209, ASTM B211

Manganese

0.3 - 0.9 %

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T4

AA Standards, ASTM B209, ASTM B211

Other

0.15 %

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T4

Silicon

0.5 %

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T4

AA Standards, ASTM B209, ASTM B211

Titanium

0.15 %

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T4

AA Standards, ASTM B209, ASTM B211

Zinc

0.25 %

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T4

AA Standards, ASTM B209, ASTM B211

Zirconium

0.2 %

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T4

Technological properties

Property
Brazing

general: no brazing is known or developed

Corrosion properties

Stress corrosion cracking: Betriebsschäden in Gebieten mit Zugspannungen quer zur Kornstruktur, Eingeschränkte Schäden an Laborproben (T4,T3, T351, T3510, T3511), d (T6, T861, T81, T851, T8510, T8511), general: sufficient, in principle it should be protected

General machinability

General: poor (O), good to acceptable

Workability

general (condition): poor(T4, T3, T351, T3510, T3511, T6), not suitable (T361, T861, T81, T851, T8510, T8511)