Tender For Procurement Of Castable Refractory Whyheat Grade A, Firecrate P And Plastic Refractory For Boiler ... in India

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Procurement of Castable Refractory whyheat grade A, Firecrate P and Plastic Refractory for boiler of Unit no. 01 to 5 SGTPS, MPPGCL, Birsinghpur - Castable Refractory Whytheat Grade A or equivalent :-A. Chemical Compositioni. Al2O3 91%(Min)ii. Fe2O3 0.8%(Max)B. Physical Compositioni. Grain Size- 5mm(max)ii. Refractory 1820 Deg. Ciii. Max Service Temp. 1785 Deg. Civ. Dry Density (Kg/m3) 2800 after drying at(+) & (-) 5% 110 C/24 Hrs.Permanent line changes (+) & (-) 1% after heating at (Max) 1550 Deg. C/24 Hrs. 2 Castable Refractory Whytheat Grade P or equivalent:- A. Chemical Compositioni. Al2O3 46%(Min)ii. Fe2O3 3.2%(Max)B. Physical Compositioni. Grain Size----5mm(max)ii. Refractory 1605Deg. Ciii. Max Service Temp. 1400 Deg. Civ. Dry Density (Kg/m3) 2100 after drying at(+) & (-) 5% 110 Deg.C/24 Hrs.Permanent line changes (+) & (-) 1% after 3 HrsCold crushing strength 400 (Min) (Kg/cm2) after drying at 110 Deg C/24 Hrs. 3 Plastic Refractory:-Technical specification :-RangeService temperature:-1650 °C Max.Refractoriness:-1785 °C MinBulk Density (Sample dried at 110 °C for 24 Hrs):-2.7 g/ccCold Crushing strength at110 °C /24 Hrs :-650 Kg/cm²1300 °C / 5 Hrs:-875 Kg/ cm²Modulus of rupture at 110 °C /24 Hrs:-100 Kg/cm²1300 °C / 24 Hrs:-160 Kg/ cm²Permanent linear change at 1300 °C / 5 Hrs :-0.60% max.Chemical Analysis Al2O3 (Nominal) :- 90.0%Fe2O3 (Max) :-0.3%Abrasion loss pre-fired at110 °C /24 Hrs :-5.0 cc1300 °C / 5 Hrs:-3.5 ccBinder Requirement :-9.5 to 10% of WtThermal conductivity at 1000 °C:-2.0 to 2.2 Kcal/m/Hr/°CMethod of application:-Ramming/Hand

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