Alumina (Al2O3)・Magnesia (MgO)・Silica (SiO2) Extrusion Molding Products (Ceramic Insulators for Heaters)

Features

Alumina (Al2O3)・Magnesia (MgO)・Silica (SiO2) Extrusion Molding Products

Product group : AA-75

Porous insulators made from alumina with a purity of 75% (mullite-type family) that are used for thermocouple pipe insulation, protection tubes and low temperature heaters.
Affordable price set for regular items
Products in the shape of pipes with one bore, two bores, four bores, six bores or eight bores and at maximum height of 300L

Product group : MM-50,MM-75

Products made from magnesia with a purity of 50% (MM-50) and 75% (MM-75) that are used for low-to-mid range temperature sheathed heaters
Affordable price set for regular items
Products in the shape of pipes with one bore and at the maximum height of 100L

Product group : MM-99

Products made from magnesia with a purity of 99% that are used for high temperature sheathed heaters and cartridge heaters
High-purity magnesia sintered products
Products in the shape of pipes with one bore, two bores, four bores, six bores or eight bores and at maximum height of 300L
We will produce items with different shapes.
We will produce the item for a minimum order quantity of 100.
Highly recommended for Ceramic Insulators for Heaters

Product group : SS-99★New Item★

Fused Silica with a purity of 99.7%
Fused silica sintered products

Table of Physical Properties

Note that the features listed below depend on their physical shapes and service condition.
Note that the features listed below are reference values and are not guaranteed.

Product group AA-75 MM-50 MM-99 SS-99
Materials Alumina Magnesia High-purity Magnesia High-purity Silica
Appearance Porous
Chemical Ingredients
(Wt%)
MgO 2.2 50.0 99.0 0.01
Al2O3 74.0 23.0 0.1 0.08
SiO2 21.0 25.0 0.3 99.7
CaO 2.4 1.5 0.3 0.02
Fe2O3 0.3 0.4 0.2 0.04
Ig.Loss 0.1
Specific Gravity
(g/cm3)
2.0 1.7 2.2 1.5
Water-absorption Rate
(%)
17.5 28.0 20.0 19.8
Apparent Porosity
(%)
35.0 48.0 41.0 30.7
Color Appearance White Light Brown Light Yellow White