Corporate Headquarters: Columbus, Ohio, USA | +1-614-876-0244 | alliedmineral.com CASE STUDY: ARMORMAX 70 SR REFRACTORY PERIMETER HEAT TREATING CAR BOTTOM FURNACE DECK EQUIPMENT 8.5m x 3m (25’L X 9.9’W) car bottom furnace deck PRODUCT ARMORMAX 70 SR shock-resistant, high needle-bearing 70% alumina castable APPLICATION ? Heat treating furnace in a seamless rolled ring facility ? Operating temperature of 733°C (1350oF) ? Thermally cycled on a regular basis INSTALLATION ? March 2013: ARMORMAX 70 SR perimeter was cast in place in three sections RESULTS ? Competitive 60% alumina castable perimeter cracked and spalled after 5 months in service ? Customer removed the sections of competitive castable in two furnaces and replaced it with ARMORMAX 70 SR ? ARMOR

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