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Comparison of Alumina, Mullite, and Quartz Tube of Properties
Max. Working Temperature (no load)
Thermo-conductivity
Thermo-expansion
Flexural Strength
Alumina (99.8%)
1800 oC
8.2 W/m*oC
8.4 x 10^-6/oC
380 Mpa
Mullite (60% Al2O3+ 38%SiO2)
1500 oC
3.6 W/m*oC
5.4 x 10^-6/oC
180 Mpa
Quartz (99.9% SiO2)
1200 oC
1.4 W/m * oC
5.5 x 10^-7/oC
48 MPa
Please click to see detailed Typical Physical Properties of Fused Quartz Glass
4", 4.37" & 4.5" Quartz Tubes
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