Physical Properties

Metric

English

Comments

Density

2.83 g/cc

0.102 lb/in³

AA; Typical

Mechanical Properties

Metric

English

Comments

Hardness, Brinell

140

140

500 kg load with 10 mm ball. Calculated value.

Hardness, Knoop

177

177

Converted from Brinell Hardness Value

Hardness, Rockwell A

51.6

51.6

Converted from Brinell Hardness Value

Hardness, Rockwell B

84

84

Converted from Brinell Hardness Value

Hardness, Vickers

162

162

Converted from Brinell Hardness Value

Tensile Strength, Ultimate

524 MPa

76000 psi

AA; Typical

Tensile Strength, Yield

469 MPa

68000 psi

AA; Typical

Elongation at Break

11 %
@Diameter 12.7 mm

11 %
@Diameter 0.500 in

AA; Typical

Modulus of Elasticity

71.7 GPa

10400 ksi

AA; Typical; Average of tension and compression. The compression modulus is about 2% greater than tensile modulus.

Poissons Ratio

0.33

0.33

Fracture Toughness

>= 22.0 MPa-m½

>= 20.0 ksi-in½

S-L

>= 24.2 MPa-m½

>= 22.0 ksi-in½

T-L

>= 26.4 MPa-m½

>= 24.0 ksi-in½

L-T

28.0 MPa-m½

25.5 ksi-in½

K(IC) in S-L Direction

28.6 MPa-m½

26.0 ksi-in½

average; S-L

29.7 MPa-m½

27.0 ksi-in½

average; T-L

31.0 MPa-m½

28.2 ksi-in½

K(IC) in T-L Direction

35.0 MPa-m½

31.9 ksi-in½

K(IC) in L-T Direction

35.2 MPa-m½

32.0 ksi-in½

average; L-T

Shear Modulus

26.9 GPa

3900 ksi

Shear Strength

303 MPa

44000 psi

AA; Typical

Electrical Properties

Metric

English

Comments

Electrical Resistivity

0.00000430 ohm-cm

0.00000430 ohm-cm

Thermal Properties

Metric

English

Comments

CTE, linear

21.7 µm/m-°C
@Temperature -50.0 - 20.0 °C

12.1 µin/in-°F
@Temperature -58.0 - 68.0 °F

23.0 µm/m-°C
@Temperature 20.0 - 100 °C

12.8 µin/in-°F
@Temperature 68.0 - 212 °F

AA; Typical; average over range

23.5 µm/m-°C
@Temperature 20.0 - 100 °C

13.1 µin/in-°F
@Temperature 68.0 - 212 °F

24.4 µm/m-°C
@Temperature 20.0 - 200 °C

13.6 µin/in-°F
@Temperature 68.0 - 392 °F

25.4 µm/m-°C
@Temperature 20.0 - 300 °C

14.1 µin/in-°F
@Temperature 68.0 - 572 °F

Specific Heat Capacity

0.860 J/g-°C

0.206 BTU/lb-°F

Thermal Conductivity

157 W/m-K

1090 BTU-in/hr-ft²-°F

Melting Point

488 - 629.4 °C

910 - 1165 °F

AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness

Solidus

488 °C

910 °F

AA; Typical

Liquidus

629.4 °C

1165 °F

AA; Typical

Processing Properties

Metric

English

Comments

Annealing Temperature

413 °C

775 °F

Solution Temperature

477 °C

890 °F

Aging Temperature

121 - 177 °C

250 - 350 °F