| Density |
2.2 gm/cm3 |
2.2 x 103 kg/m3 |
| Hardness |
5.5 - 6.5 Mohs' Scale 570KHN100 |
|
| Design Tensile Strength |
7,000 psi |
4.8 x 107 Pa (N/m2) |
| Design Compressive Strength |
Greater than 160,000 psi |
Greater than 1.1 x 109 Pa |
| Bulk Modulus |
5.3 x 106 psi |
3.7 x 1010 Pa |
| Rigidity Modulus |
4.5 x 106 psi |
7.2 x 1010 Pa |
| Young's Modulus |
10.5 x 106 psi |
7.2 x 1010 Pa |
| Poisson's Ratio |
.17 |
.17 |
| Coefficient of Thermal Expansion |
5.5 x 10-7cm/cm * oC (20oC - 320oC) |
5.5 x 10-7m/m * oK (293oK - 593oK) |
| Thermal Conductivity (20oC) |
3.3 x 10-3 gm cal * cm/cm2 * oC |
1.4 W/m * oK |
| Specific Heat (20o) |
.16 gm cal/gm |
670 J/kg * oK |
| Softening Point |
1683 oC |
1956 oK |
| Annealing Point |
1215 oC |
1488 oK |
| Strain Point |
1120 oC |
1393 oK |
| Electrical Resistivity |
7(107) ohm ?cm (350 oC) |
7(107) ohm-m |
| Dielectric Properties |
(20 oC and 1 MHz) |
(293 oK and 1 MHz) |
| Constant |
3.75 |
3.75 |
| Strength |
5 x 107 volts/mil |
5 x 107 V/m |
| Loss Factor |
Less than 4 x 10-4 |
Less than 4 x 10-4 |
| Dissipation Factor |
Less than 1 x 10-4 |
Less than 1 x 10-4 |
| Index of Refraction |
1.4585 |
1.4585 |
| Constringency (Nu value) Fused Quartz |
67.56 |
67.56 |
| Velocity of Sound-Shear Wave |
3.75 x 105 cm/sec |
3.75 x 103 m/s |
| Velocity of Sound-Compression Wave |
5.90 x 105 cm/sec |
5.90 x 103 m/s |
| Sonic Attenuation |
Less than 11 db/m * MHz |
Less than 11 db/m * MHz |
| Permeability Constants |
(cm * mm/cm * sec * cm of Hg * 700oC/973oK) |
| Helium |
210 x 10-10 |
| Hydrogen |
21 x 10-10 |
| Deuterium |
17 x 10-10 |
