High Alumina Fused Cast Refractory
Marsnite (MB) Series

Features

01. Excellent Anti-contamination

Selected alumina raw materials and strict quality control minimize the formation of stones and blisters in molten glass. Marsnite(MB) also offer high resistance to alkali vapor within glass melting furnaces, making them suitable for Superstructures and low-temperature glass contact areas.

02. High Corrosion Resistance

Selected alumina raw materials and optimal production conditions produce very dense alumina fused cast refractories, especially resistant to corrosion by low-temperature molten glass, suitable for glass contact parts.

Marsnite (MB) Series Product Lineup

MB-G (αβ-Alumina）

Composed of about 50% α-alumina and 50% β-alumina. Shows corrosion resistance equivalent to AZS below 1300℃ with low contamination, suitable for Working end and Forehearth channel blocks.

MB-C (αβ-Alumina)

Composed of 70% α-alumina and 30% β-alumina, offering excellent stability at high temperatures, suitable for Superstructures and Crowns of melting furnaces.

MB-U (β-Alumina)

Composed almost exclusively of β-alumina, featuring large crystal grains. Demonstrates high corrosion resistance and anti-spalling properties against alkali vapor, suitable for Superstructures exposed to thermal shock.

Chemical composition

	MB-G	MB-C	MB-U
Al2O3	95%	96.5%	93%
SiO2	0.8%	0.8%	0.2%
Na2O	3.5%	2.0%	6.5%

The quality data provided here are reference values and not guaranteed values. Quality assurance for your order will be determined separately through discussion. Please note that the listed quality data may be changed without prior notice.

Casting Type

Mark	Name	Casting Type Description
RC	Regular Cast	Standard casting type. The product has casting voids (shrinkage voids) at the bottom of the casting gate.
VF	Void Free	After casting and cooling/solidification, the casting void portion is cut off, resulting in a product without voids.