Fused Magnesium-Aluminate Spinel FS27

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Description

GNPGraystar’s Fused MagnesiumAluminate Spinel is made of high purity raw materials in electric arc furnaces. The maximum amount of spinel crystals is achieved by using pure raw materials and electric arc furnaces. The product has a high thermal shock resistance and slag corrosion resistance, and good refractoriness.

This material data has been provided by GNPGraystar Specialty Materials.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyValue

Density

3.5 g/cm³

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Porosity

4.0 %

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Water absorption

1 %

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Thermal

PropertyValue

Max service temperature

1900.0 °C

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Chemical properties

PropertyValueComment

Aluminium

71.0 - 73.0 %

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Al₂O₃

Calcium

0.28

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max. CaO

Iron

0.19

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max. Fe₂O₃

Magnesium

26.0 - 28.0 %

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MgO

Silicon

0.1

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max. SiO₂

Sodium

0.18

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max. Na₂O

Technological properties

Property
Application areas

GNPGraystar’s FS27 is used in the production of refractory materials used for the sinter and transit zones of rotary furnaces in the cement industry, for the arches of electric arc furnaces, for the refractory lining of highfrequency furnaces, and various kinds of torpedo ladles and other ladles used in the steel industry.

Crystal structure

α - Al2O3 Phase: 1%, Periclase Phase: 0%

Other

Available sizing: 3-5 mm, 1-3mm, 0.5-1 mm, 0-1 mm, 0-0.5 mm, 0-0.1 mm, 200/F, 325/F

Other sizes are available upon request.