Cylindrical High‑Purity Ceramic Crucible Quartz Mullite Corundum Customizable

High-Purity Fused Silica Ceramic Crucible
Maximum Temperature Resistance ≤ 1680°C

Chemical Composition: 99.86% Silicon Dioxide (SiO₂)
Product Features: Fine structure, low thermal conductivity, small thermal expansion coefficient, high dimensional precision, good thermal shock stability, good electrical performance, excellent high-temperature thermal shock resistance, longer service life, good chemical corrosion resistance, compressive strength at room temperature ≥ 70MPa, etc.
Applications: Used for melting silicon, aluminum, copper, etc.; widely used in the optical glass, special glass, ceramic grinding wheel binder, polysilicon production, and non-ferrous metal smelting industries.a

Material	Max Service Temperature	Main Composition
High-purity quartz	1680℃	SiO₂ content ≥ 99%
Mullite (60%~70% alumina)	1600℃	Al₂O₃ content 60~70% SiO₂ content 30~40%
99% alumina (Corundum)	1750℃	Al₂O₃ content ≥ 99%
Cordierite sagger	1300℃	Al₂O₃ content ~52% SiO₂ content ~40% MgO content ~8%
Zirconia	2200℃	ZrO₂ + HfO₂ content ≥ 95%
Corundum-mullite	1700℃	Al₂O₃ content 75~85% SiO₂ content 15~25%
Zirconia-mullite	1600℃	ZrO₂ content 10~40% Al₂O₃ content 45~70% SiO₂ content 10~20%
Magnesia-alumina (Magnesia spinel / Mag-Alumina)	1800℃	MgO content 3~15% Al₂O₃ content >90% SiO₂ content <5%
Zirconia-alumina (Zirconia-corundum)	1800℃	ZrO₂ content 20~40% Al₂O₃ content 60~80%

Cylindrical Crucible