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Alumina (Porous) (3200ºF - 3600ºF Range)

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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.



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Item #

Bulk Density

Alumina Content (%)

Maximum Operating Temperature

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Modulus of Rupture (Room Temperature)

Thermal Stock Resistance

TA-530/FMS 2.8 g/cm³
175
lb/ft³
88.3 1760 ºF
3200
ºC
2000 psi
13.8
MPa
Good
TA-540/540F 2.8 g/cm³
175
lb/ft³
88.4 1760 ºF
3200
ºC
1900 psi
13.1
MPa
Good
TA-505/505F 3.0 g/cm³
190
lb/ft³
96.3 1870 ºF
3400
ºC
4500 psi
31.0
MPa
Fair
TA-507/507F 3.0 g/cm³
190
lb/ft³
97.3 1870 ºF
3400
ºC
6850 psi
47.2
MPa
Poor
TA-510F 3.1 g/cm³
195
lb/ft³
99.7 1980 ºF
3600
ºC
6800 psi
46.9
MPa
Poor
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