Fiberfrax Durablanket S/Z
The lightweight, needle-punched mats are entirely inorganic and retain their strength, flexibility and thermal properties in many working environments without generating smoke or fumes. The enhanced performance of Durablanket S and Durablanket Z fibres helps end-users reduce energy costs and meet increasingly stringent carbon targets, without increasing the amount of insulation required. With their lower thermal conductivity, they provide improved thermal efficiency and energy saving benefits. The mats have excellent chemical stability and are resistant to most chemicals except hydrofluoric and phosphoric acids and concentrated bases. If wetted with water or steam, the thermal and physical properties remain unchanged drying.
Classification temperature:
Durablanket S 1260°C
Durablanket Z 1430°C
Features:
– High temperature stability
– Low thermal conductivity
– Resistance to thermal shock
– Superior adhesion
– Low heat capacity
– High tensile strength and elasticity
– Resistance to chemical attack
– Superior sound absorption
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Chemical analysis (%) Durablanket S Durablanket Z AI2O3 43 – 47 28 – 32 SiO2 53 – 58 52 – 56 ZrO2 – 14 – 18 Fe2O3 <0.5 – other <10ppm <10ppm Physical properties Colour white white Classification temperature (°C) 1260 1430 Melting temperature (°C) 1760 1760 Fibre diameter (microns) 2,65 2,65 Centre of gravity (g/cm3) 2,73 2,73 Specific heat at 1093°C (J/kgK) 1130 1130 Density (kg/m3) 64 96 128 160 96 128 160 Thermal conductivity (W/mK) Mean temperature 600°C 0,18 0,14 0,12 0,11 800°C 0,27 0,22 0,18 0,16 0,22 0,18 0,16 1000°C 0,42 0,36 0,28 0,21 0,36 0,28 0,21 1200°C 0,56 0,45 0,30 Tensile strength (kPa) 35 55 75 95 70 90 110 Persistent linear shrinkage (%) 6 hours soaking 1250°C 2,6 – 1400°C – 2,7
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Durablanket S Durablanket Z Roll length (m) Density (kg/m3) 64 96 128 160 96 128 160 Thickness 13mm – + + + + + + 14,64 19mm + + + + + + + 10,00 25mm + + + + + + + 7,32 38mm + + + + + + + 5,00 50mm + + + – + + – 3,06