Note: This is a variation of Insulating Castables.
Foundry Service & Supplies offers a complete line of high temperature insulating castables (monolithics) rated for use in applications ranging from 2000ºF to 3300ºF. Their light weight and low thermal conductivity reduce both the amount of heat storage and heat transfer producing significant savings in furnace fuel consumption. Lower densities reduce the amount of supporting furnace steelwork required and provide more insulation with a thinner lining. Foundry Service can pre-cast and fire parts and shapes per customer suppliecell namerawings as well.
Specifications
| Composition | Alumina Calcium Oxide Silica |
|---|---|
| Maximum Operating Temperature ( ºF ) | 3000 |
| Density at 1500ºF ( lb/ft³ ) | 95 to 105 |
| Density at 1500ºF ( kg/m³ ) | 1522 to 1683 |
| Cold Crushing Strength (Dried 18-24 hrs. at 220ºF [104ºC]) ( MPa ) | 3.44 to 4.8 |
| Cold Crushing Strength (Dried 18-24 hrs. at 220ºF [104ºC]) ( psi ) | 500 to 700 |
| Cold Crushing Strength (Fired 5 hrs. at 1500ºF [816ºC]) ( MPa ) | 4.14 to 5.52 |
| Cold Crushing Strength (Fired 5 hrs. at 1500ºF [816ºC]) ( psi ) | 600 to 800 |
| Cold Crushing Strength (Fired 5 hrs. at Use Limit) ( MPa ) | 11.7 to 15.2 |
| Cold Crushing Strength (Fired 5 hrs. at Use Limit) ( psi ) | 1700 to 2200 |
| Modulus of Rupture (Dried 18-24 hrs. at 220ºF [104ºC]) ( MPa ) | 1.72 to 2.76 |
| Modulus of Rupture (Dried 18-24 hrs. at 220ºF [104ºC]) ( psi ) | 250 to 400 |
| Modulus of Rupture (Fired 5 hrs. at 1500ºF [816ºC]) ( MPa ) | 1.37 to 2.06 |
| Modulus of Rupture (Fired 5 hrs. at 1500ºF [816ºC]) ( psi ) | 200 to 300 |
| Modulus of Rupture (Fired 5 hrs. at Use Limit) ( MPa ) | 5.86 to 6.9 |
| Modulus of Rupture (Fired 5 hrs. at Use Limit) ( psi ) | 850 to 1000 |
| Standard Packaging | 50# Bag |