Density

g/cm3

Relative density

Elastic modulus

GPa

Compression strength ratio25

Hardness

GPa

3.26

>99.5

300-320

40-50

16 - 20

Fracture toughness

/MPam1/2

Bending strength

MPa

Poisson's ratio

Linear expansion coefficient

10-6K-1

Webuller modulus

6.0-9.0

900-1000

0.25

3.1-3.3

12-15

Thermal conductivity

WmK-1

Specific resistance ratio

Corrosion resistance

Size stability

Magnetic

15~20

1018

Excellent

Excellent

NO