Physical Properties

Metric

English

Comments

Density

2.84 g/cc

0.103 lb/in³

AA; Typical

Mechanical Properties

Metric

English

Comments

Hardness, Brinell

135

135

AA; Typical; 500 g load; 10 mm ball

Hardness, Knoop

170

170

Converted from Brinell Hardness Value

Hardness, Rockwell A

50.5

50.5

Converted from Brinell Hardness Value

Hardness, Rockwell B

82

82

Converted from Brinell Hardness Value

Hardness, Vickers

155

155

Converted from Brinell Hardness Value

Tensile Strength, Ultimate

517 MPa

75000 psi

AA; Typical

Tensile Strength, Yield

448 MPa

65000 psi

AA; Typical

Elongation at Break

12 %
@Diameter 12.7 mm

12 %
@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 the tensile modulus.

Poissons Ratio

0.33

0.33

Fracture Toughness

24.0 MPa-m½

21.8 ksi-in½

K(IC) in S-L Direction

34.0 MPa-m½

30.9 ksi-in½

K(IC) in L-S Direction

36.0 MPa-m½

32.8 ksi-in½

K(IC) in L-T Direction

Shear Modulus

27.6 GPa

4000 ksi

Shear Strength

303 MPa

44000 psi

AA; Typical

Electrical Properties

Metric

English

Comments

Electrical Resistivity

0.00000432 ohm-cm
@Temperature 20.0 °C

0.00000432 ohm-cm
@Temperature 68.0 °F

AA; Typical

Thermal Properties

Metric

English

Comments

CTE, linear

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

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

AA; Typical; average over range

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

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

Specific Heat Capacity

0.960 J/g-°C

0.229 BTU/lb-°F

Thermal Conductivity

154 W/m-K

1070 BTU-in/hr-ft²-°F

AA; Typical at 77°F

Melting Point

477 - 635.0 °C

890 - 1175 °F

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

Solidus

477 °C

890 °F

AA; Typical

Liquidus

635.0 °C

1175 °F

AA; Typical