Chosun Refractories PTA-175 Plastic Refractory

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Chosun Refractories PTA-175 Plastic Refractory
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Information provided by Chosun Refractories via Korea Institute of Ceramic Engineering and Technology (KICET).
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Mechanical Properties	Metric	English	Comments

Modulus of Rupture	3.85e-7 - 0.000981 GPa @Temperature 110 °C, Time 86400 sec	0.0000558 - 0.142 ksi @Temperature 230 °F, Time 24.0 hour
	0.0034335 - 0.0063765 GPa @Temperature 1350 °C, Time 10800 sec	0.49799 - 0.92485 ksi @Temperature 2460 °F, Time 3.00 hour
	0.0034335 - 0.0063765 GPa @Temperature 1500 °C, Time 10800 sec	0.49799 - 0.92485 ksi @Temperature 2730 °F, Time 3.00 hour
Compressive Strength	4.90 - 9.81 MPa @Treatment Temp. 110 °C, Time 86400 sec	711 - 1420 psi @Treatment Temp. 230 °F, Time 24.0 hour	Cold Crushing Strength
	29.4 - 39.2 MPa @Treatment Temp. 1350 °C, Time 10800 sec	4270 - 5690 psi @Treatment Temp. 2460 °F, Time 3.00 hour	Cold Crushing Strength
	29.4 - 39.2 MPa @Treatment Temp. 1500 °C, Time 10800 sec	4270 - 5690 psi @Treatment Temp. 2730 °F, Time 3.00 hour	Cold Crushing Strength

Thermal Properties	Metric	English	Comments
Thermal Conductivity	1.338 W/m-K @Temperature 500 °C	9.268 BTU-in/hr-ft²-°F @Temperature 932 °F
	1.5354 W/m-K @Temperature 1000 °C	10.638 BTU-in/hr-ft²-°F @Temperature 1830 °F
Maximum Service Temperature, Air	1750 °C	3180 °F	limited
Shrinkage	-0.400 % @Temperature 1350 °C, Time 10800 sec	-0.400 % @Temperature 2460 °F, Time 3.00 hour
	-0.350 % @Temperature 1500 °C, Time 10800 sec	-0.350 % @Temperature 2730 °F, Time 3.00 hour
	-0.350 % @Temperature 110 °C, Time 86400 sec	-0.350 % @Temperature 230 °F, Time 24.0 hour

Component Elements Properties	Metric	English	Comments
Al2O3	70 %	70 %
SiO2	23 %	23 %

Descriptive Properties
Main Applications	Volume Stability
Material Required for Estimating (kg/m³)	2,600

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