Al

Fe

Density r [kg/dm³]

2.7

7.87

Cristal lattice

cfo

cro

Young’s modulus [N/mm²]

≈71*10³

≈210*10³

Tensile strength Rm [N/mm²]

≈50

≈200

Melting point [˚C]

660

1539

Specific heat [J/kg˚C]

≈896

≈460

Electrical conductivity λth [m/Ωmm²]

36

8.3

Thermal expansion coefficient [1/˚C]

24*10−6

12*10−6

Oxides

Al2O3

FeO

Fe2O3

Fe3O4

Melting point of the oxides [˚C]

≈2050

≈1400

≈1455

≈1600

Thermal conductivity [W/mK]

235

78