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Insulating Fire Bricks
KFB Thermal Insulating Firebrick with light weight,has high mini-porosity arranged in average,keep furnace wall low radiation and depress the charges of fuels.Light weight for KFB means the lowest thermal storage,it's quicker to heat and cool and permit rapid cycle work.They are used for **0℃～***0℃,you can choose the most economical products according to service temperature. Specification     KFB**3 KFB**6 KFB**8 KFB**0 KFB**2 Temperature(℃) ***0 ***0 ***0 ***0 ***0 Color  white white white white white Density(kg/m3 )   **0/**0/**0 **0 **0 ***0 ***0 Reversible Thermal Expansion ***0℃(%) 0.5 0.7 0.8 0.9 0.9 Tensile Strength(Mpa) 0.8 1.2 1.4 1.6 1.8 Thermal conductive(W/mK) **0℃ 0.*6 —— —— —— —— **0℃ 0.*8 0.*1 0.*6 0.*0 0.*8 ***0℃ 0.*0 0.*3 0.*8 0.*2 0.*2 ***0℃ ——