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High Strength Alkaline Resistant Castables Refractory 13NL
Technical data sheet
Brand 13NL
Max service temp.(°C) 1300
Bulk density(g/cm3) 2.1
Chemical composition(%) Al2O3 ≤ 48
SiO2 ≥ 50
Cold crush strength(Mpa) 110°C×24h ≥ 70
1000°C×3h ≥ 70
Modulus of rupture(Mpa) 110°C×24h ≥ 7
1000°C×3h ≥ 7
permanent linear change (%) 1000°C×3h ±0.2
Thermal Cond at 1200°C(W/m.k) 1.35
Water required (%) 6-7
Methood of installation Vibration
Main use The lining of preheater and precalciner of large cement kiln

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