Alumina Kiln Furniture
Schaefer Industrial Ceramics is proud to introduce its newest product line of alumina kiln furniture. Recognizing a need for longer lasting refractories, SIC embarked on a development program to re-invent alumina kiln furniture.
Today’s alumina parts are largely based on technology developed by General Motors in the early 1900’s for kiln furniture used in the manufacturing of spark plug insulators. Manufacturers have used this technology due to its good thermal shock resistance, compatibility with molten metals, and its high temperature refractoriness. Differences in conventional alumina products are mainly due to processing rather than product design.
At Schaefer Industrial Ceramics, we have upgraded this technology to incorporate modern advancements in materials engineering through the utilization of advanced raw materials and by developing a process that will maximize the desired properties and minimize the weaknesses found in today’s materials. The result is extremely durable, longer lasting kiln furniture superior to today’s conventional products.
Schaefer Industrial Ceramics is proud to introduce its newest product line of alumina kiln furniture. Recognizing a need for longer lasting refractories, SIC embarked on a development program to re-invent alumina kiln furniture.
Today’s alumina parts are largely based on technology developed by General Motors in the early 1900’s for kiln furniture used in the manufacturing of spark plug insulators. Manufacturers have used this technology due to its good thermal shock resistance, compatibility with molten metals, and its high temperature refractoriness. Differences in conventional alumina products are mainly due to processing rather than product design.
At Schaefer Industrial Ceramics, we have upgraded this technology to incorporate modern advancements in materials engineering through the utilization of advanced raw materials and by developing a process that will maximize the desired properties and minimize the weaknesses found in today’s materials. The result is extremely durable, longer lasting kiln furniture superior to today’s conventional products.
Chemical Analysis (Wt. %, Calcined basis)
Al2O3 89-91%
SiO2 8-9%
CaO / MGO 0.1 – 0.2%
Fe2O3 0.03 – 0.07%
Other 1-2%
Maximum Use Temperature: 3100°F
Hot Modulus of Rupture (2800°F): 1700 – 1900 psi
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Feel free to download the data sheet which contains all above specs on our pouring cups.
The SDS information regarding all of our kiln furniture is available to view or download.
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