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Light weight for Heat insulation brick means the lowest thermal storage, it's quicker to heat and cool, and permit rapid cycle work. They are used for 900C~1650C, you can choose the most economical products according to service temperature.
G.R.S. Heat Insulating brick is in accordance with ISO9001 Standard.
1. Typical Application
1) Lining of high-temperature kilns of industrial ceramics, industrial furnaces under 1650C of petrochemical, metallurgy and machinery industries
2) Lining of hot-surface of industrial furnaces as carbon furnace, cracking furnace, heating furnace for oil refining, roller kiln, tunnel kiln.
3) Back lining insulating layer of industrial furnace as glass tank kiln.
4) Atmosphere furnace.
Quality JM-23 JM-26 JM-28 JM-30 JM-32 Classification temperature deg.c 1260 1460 1540 1650 1760 Bulk density g/cm3 0.6 0.8 0.9-1.0 1.0-1.5 1.5-1.7 Crushing strength Mpa 1.2 1.6 2.1 2.5 3.5 Modulus of rupture Mpa 0.9 1.4 1.6 2.1 2.1 Permanent linear change(CT-30deg.c*24h)% 0.5 0.4 0.5 0.9 0.9 Reversible thermal expansion at 1100deg.c 0.5 0.7 0.8 0.9 1.1 Thermal shock resistance(cycles)1100deg.c Water cooling 30 30 30 30 30 Thermal conductivity W/m.k 400deg.c 0.14 0.27 0.32 0.41 0.49 600deg.c 0.16 0.29 0.34 0.43 0.50 800deg.c 0.18 0.31 0.36 0.44 0.51 1000deg.c 0.20 0.33 0.38 0.45 0.53 1200deg.c - 0.35 0.41 0.47 0.56 Chemical analysis(%) Al2O3 37 58 67 73 77 Fe2O3 0.7 0.7 0.6 0.5 0.4
