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Item # TA-510F, Alumina (Porous) (3200ºF - 3600ºF Range)

Foundry Service offers Porous Alumina compositions from 88% to 99.7% alumina content. TA-530 is a nominal 90% alumina material that is excellent for molten metal contact, kiln furniture, and miscellaneous shapes. TA-530 combines high strength and thermal shock resistance yielding a versatile alumina product that is suitable in a wide variety of applications. TA-540 is a modified version of TA-530 that is best suited for miscellaneous kiln furniture. The higher content aluminas are excellent for use when silica content is critical. TA-505 is suitable for induction melting under vacuum due to a lower silica content while retaining thermal shock resistance. TA-507 is excellent for use in vacuum or hydrogen atmospheres due to the lowered silica content. TA-510F is preferred in hydrogen or vacuum atmospheres and has excellent strength at elevated temperatures.

Specifications  · Note


Nominal Chemical Composition

Al2O3 - 99.7
Fe2O3 - <0.1

SiO2 - <0.1

Other - <0.2

Bulk Density

3.1 g/cm³

Apparent Porosity

14.0 %

Alumina Content (%)


Maximum Operating Temperature

1980 ºF

Modulus of Rupture (Room Temperature)

6800 psi

Hot Modulus of Rupture (at 2700ºF for 12 hrs.)

1350 psi

Thermal Stock Resistance


Data represents average results of standard tests conducted under controlled conditions and are subject to usual variations. They should not be used for specifying products.


Data Sheet for Alumina (Porous) (3200°F - 3600°F Range)
(PDF, 46KB)

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