Al

Fe

K

Na

Li

Ca

Mg

Cu

Mn

Cr

B

Ti

5-12

0.19-1.5

0.71-1.6

0.12-1.76

0.38-0.76

0.17-1.23

0.05-0.5

0.05

0.05

<0.05

<0.1

<1.0

Mechanical Property

Reference Value

Density

2.2g/cm3

Deformation Point

1280°C

Softening Point

1780°C

Annealing Point

1250°C

Specific Heat(20~350°C)

670J/kg.°C

Thermal Conductivity(20°C)

1.4W/m.°C

Refractive Index

1.4585

Coefficient of thermal expansion

5.5×10-7cm/cm.°C

Hot work temperature

1750~2050°C

The temperature for a short time

1300°C

The temperature for a long time

1100°C