BATU ISOLASI Spesifikasi Produk : No Specification Ib - 900 B - 1 B - 2 C - 1 C - 2 1 Max. Service Temperatur ( Temperatur Kerja Maximum) ( C) 900 950 1000 1200 1350 2 Bulk Density ( Berat Jenis) ( Gr/ Cm3) 0, 46 0, 70 0, 75 1, 05 1, 10 3 Cold Crushing Strenght ( Kg/ Cm2) > 5 > 25 > 25 > 50 > 60 4 Termal Conductivity At 350 C ( Kcal/ Mh C) 0, 13 0, 17 0, 18 0, 30 0, 35 5 Chemical Composition ( Komposisi Kimia) ( % ) - Al2o3 - Sio2 > 20 25 30 35 45 < 55