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High Property Tabular Alumina Castables Refractory GT-20

melting steel in Induction furnaces and Middle Frequency

Technical data sheet
Brand GT-20
Max service temp.(°C) 1800
Bulk density(g/cm3) 2.95
Chemical composition(%) Al2O3 94.59
CaO 1.44
Fe2O3 0.06
Cold crush strength(Mpa) 110°C×24h 78.4
1500°C×3h 105
Modulus of rupture(Mpa) 110°C×24h 11.2
1500°C×3h 12.5
permanent linear changes on reheating (%) 1500°C×3h +0.3
Water required (%) 4.5-5.5
Methood of installation Vibration

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