RCF Blanket

DESCRIPTION

STD/Cera: Refractory fibre made from alumina and silica.
AZS/Cerachem: Refractory fibre made from Alumina, Silica and Zironia. All above fibres are resistant to chemical attack, except for hydrofluoric and phosphoric acids and strong alkalies.

FEATURES

i Excellent Thermal stability :resist devitrification at high Temperature
i Low thermal conductivity
i Excellent thermal shock resistance
i Excellent chemical stability
i High resiliency
i Good sound absorption
i Low heat storage capacity

CLASSIFICATION TEMPERATURE

i STD : 1260 ° C
i AZS : 1425 ° C
i CERA : 1260 ° C
i CERACHEM : 1425 ° C
The Maximum use temperature depends on the application.
In case of doubt, refer to MMTCL Technical service for advice.

APPLICATIONS

i Raw material for the manufacturing finished products such as Boards, Shapes, Paper and Yarn etc.
i Expansion joints, Patching and emergency repairs in furnaces, Boilers, Heaters etc.
i Loose insulating fill for crowns and walls of kilns and furnaces.
i Packing material for temporary repair of insulation
i Precursor for engineered fibres

Availability & Packaging

i All Bulk fibres are delivered in 20 Kgs / 25 Kgs bags (or) in cartons of 16 Kgs.

Physical PropertiesSTD BlanketAZS BlanketCERA BlanketCERACHEM Blanket
Classification temperature°C1260142512601425
Chemical composition (%)
Al2O343 – 4732 – 3642 – 4633 – 37
SiO253 – 5744 – 4854 – 5848 – 52
ZrO216 – 1913 – 17
Fe2O30.10.10.10.1
CaO + MgO0.080.080.080.08
Na2O + K2O0.400.400.400.40
Tensile strength ( kgf/m2 )
64 kg/m³1200120025002500
96 kg/m³2000200045004500
128 kg/m³3000300060006000
160 kg/m³4000400070007000
190 kg/m³5000500075007500
Linear shrinkage % – 24 hrs Max3.2 (1200°C)3.5 (1400°C)3.0 (1200°C)3.5 (1400°C)
Thermal conductivity w/mkSTD Blanket/AZS Blanket

Cerablanket/Cerachem Blanket
Densities kg/m3
64 96 128
64 96 128
400 C
0.12 0.09 0.08
0.12 0.10 0.09
600 C
0.20 0.14 0.13
0.20 0.16 0.15