China Graduated Cylinder/Clear Quartz Glass Crucible with Handle, Find details about China Heat Resistance Quartz Rings, Quartz Glass Rings from Graduated Cylinder/Clear Quartz Glass Crucible with Handle
Physical properties | |
SiO2 : | more than 99.95% |
Density : | 2.2(g/cm3) |
Degree of hardness mosh' scale : | 6.6 |
Coefficient of expansion 25--300ºC ºC-1 ( ×10-6 ) | 0.58 |
Melting point: | 1732°C |
Working temperature : | Under 1100°C |
Max temperature can reach in a short time : | 1450°C |
Acid tolerance: | 30 times than Ceramics , 150 times than Stainless steel |
Visible light transmittance : | above 93% |
UV spectral region transmittance: | 80% |
Resistance value : | 10000 times than ordinary glass |
Annealing point: | 1180°C |
softening point: | 1630°C |
Strain point: | 1100°C |