Attachment 4 - NARGON_A-94.pdf

II I

Product Data 9/02: 8201

NARGON® A-94

Description: Gas Purge/Porous

Chemical Analysis: Approximate (Ignited Basis)

Silica (SiO2) 2.4%

Alumina (Al2O3) 95.0%

Iron Oxide (Fe2O3) 0.1%

Titania (TiO2) 0.0%

Lime (CaO) 0.2%

Chromium Oxide (Cr2O3) 1.5%

Magnesia (MgO) 0.1%

Alkalies (Na2O + K2O) 0.3%

Physical Data (Typical)

Bulk Density 184 lb/ft3 (2.95 g/cm3)

Modulus of Rupture

At 70°F (21°C)

At 1500°F (816°C)

At 2820°F (1550°C) lb/in.2 (MPa)

6,300 (43.5)

3,000 (20.7)

250 (1.7)

Cold Crushing Strength 18,750 lb/in.2 (129.3 MPa)

Apparent Porosity 23.2%

Apparent Specific Gravity 3.83

Permeability 950 Centidarcy (0.50 cgs)

Mean Pore Radius 30 microns

Note: The data given above are based on averages of the results on samples selected from initial or limited plant production. Variation from the above data may occur in individual tests and in large scale plant production. The test data cannot be taken as minimum or maximum values for specification purposes. ASTM test procedures used when applicable.