Properties

Magnesium

Aluminum

Iron

Crystal Structure

HCP

FCC

BCC

Standard Atomic Weight (g/mol)

24.31

26.98

55.85

Density at 25˚C (g/cm³)

1.738

2.70

7.87

Liquid Density at Melting Point (g/cm³)

1.584

2.375

6.98

Melting Point (˚C)

650

660

1536

Boiling Point (˚C)

1091

2519

2862

Heat of Fusion (kJ/mol)

8.48

10.71

13.81

Heat of Vaporization (kJ/mol)

128

294

340

Heat Capacity at 25˚C (J/mol * K)

24.869

24.2

25.1

Thermal Conductivity at 300 K (W/m * K)

156

237

80.4

Thermal Expansion at 25˚C (µm/m * K)

24.8

23.1

11.8

Young’s Modulus (GPa)

45

70

211

Shear Modulus (GPa)

17

26

82

Poisson Ratio

0.29

0.35

0.29

Brinell Hardness (MPa)

260

245

490