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> alumina ceramic

size:80*100mm
working temp: 1700C
density: 3.85g/cm3
Product description: alumina ceramic crucible size:80*70*1000mm working temp: 1700C density3.85g/cm3
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High Purity Cylindrical Al2o3 Ceramic Corundum Alumina Crucible for Metal Melting in Laboratory

High alumina purity:al2o3>99%,good corrosion resistance.
High temperature resistance,1600C in long use,1800C in short use.
Good thermal shock,no easy to crack.
High slip casting density
It is inert in hydrogen and carbonaceous atmospheres and offers high resistance to alkalies and other fluxes. It is suitable for glass melting, including borosilicate glass. Recommended for use with refractory metals such as molybdenum, platinum, rhodium, tungsten, tantalum and iridium.

Technical Parameter:

Material	85 Al2o3	90 Al2o3	95 Al2o3	99.7 Al2o3
Al2o3	85%	90%	93%	99.30%
Fe2o3	≤ 1.0	≤ 0.5	≤ 0.5	≤ 0.3
Desnsity: g / cm3	3.4	3.5	3.6	3.85
Vickers Hardness	≥ 8.6	≥ 8.8	9	9
Water Absorption:%	≤ 0.2	≤ 0.1	≤ 0.085	≤ 0.01
Refractoriness:°C	1580 °C	1600 °C	1650 °C	1800°C
Flexural Strength:Mpa	180	200	240	280
Wear Rate( at room temperature, erosion, 100 grinding)%	≤ 3	≤ 2.5	≤ 1	≤ 0.5