Tabular Alumina Castables Refractory GT-20,Tabular Alumina Castables Refractory GT-20 Manufacturer,Tabular Alumina Refractory Castables GT-20 Supplier,china

High Property Tabular Alumina Castables Refractory GT-20

melting steel in Induction furnaces and Middle Frequency

Technical data sheet
Brand		GT-20
Brand		Typical
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
Cold crush strength(Mpa)	1500°C×3h	105
Modulus of rupture(Mpa)	110°C×24h	11.2
Modulus of rupture(Mpa)	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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