Pre Cast Pre Fired(PCPF)Blocks


Hand Moulding / Precast Shapes

MRPL manufactures varieties of Refractories shapes which are difficult and/or impossible to make through Pressing route. Products of these kinds of ranges are of complex and complicated shapes embedded with Metal Anchors or Frames. MRPL has its own Central Workshop for Mould making (both Metallic and Wooden Patterns) for fabrication of Precast Items with assured product qualities in terms of shapes, sizes, dimensional accuracy and surface finish. PCPF shapes of very big sizes like Ladle Cover for VAD; Top Blocks for ABF; Ceramic Anchor embedded Precast Element for Roof of Reheating Furnace etc. are casted in the designated area with all necessary arrangement for proper handling of heavy items mechanically. Quality and temperature of Water, required for casting, are monitored and maintained based on the ambient conditions to minimize the seasonal effects. These materials are fired in specially designed Kiln as per the process requirement and quality of the products. The most important requirement of Precast shapes is its quality; which should be almost same with rest of the refractory structures.


Product Name Chemical Analysis (wt%) Apparent Porosity (%) Bulk Density (g/cc)
CCS (kg/cm2) PLC (%) PCE (0C/OC) Min. Service Temperature (0C) Max. Application Area
Al2O3 Fe2O3
Mahakoshal LC 45 44-48 1.2-1.4 12-16 2.30 800-900 ±1.8 at 15000C/3h 1665/30 1500 Aluminium Industry for Burner Block Sealing; Top Block in ABF and others.
Mahakoshal LC 60 58-62 1.4-1.6 12-16 2.55 900-1100 ±1.5 at 15000C/3h 1763/34 1550 Burner Blocks in Fertilizer Plants
Mahakoshal LC 70 68-72 1.4-1.6 11-15 2.65 1000-1300 ±1.5 at 15000C/3h 1785/35 1600 Burner Blocks in Fertilizer Plants
Mahakoshal LC 70M 68-72 0.5-0.8 12-16 2.60 1000-1200 ±0.8 at 15500C/3h 1820/37 1700 Burner Blocks in Fertilizer Plants
Mahakoshal LC 80 78-82 1.6-2.0 12-16 2.80 1100-1400 ±1.5 at 15000C/3h 1804/36 1650 Burner Blocks in Fertilizer Plants
Mahakoshal LC 90 86-90 1.0-1.2 11-15 3.00 1200-1500 ±1.0 at 15000C/3h 1820/37 1700 Rolling Mill Hearth
Mahakoshal ULC 65 63-66 1.2-1.4 11-15 2.65 1000-1200 ±1.2 at 15000C/3h 1785/35 1600 Burner/Muffle Blocks in Fertilizer Plants
Mahakoshal ULC 95 93-96 0.2-0.4 11-15 3.10 1200-1500 ±1.0 at 15000C/3h 1835/38 1800 Rolling Mill Hearth





  • Size Tolerance : ±5% or ± 2.0mm whichever is greater.
  • Mahakoshal does not warrant the accuracy, fitness for purpose or updates of any information disclosed herein. Specification of the products may change based on the geographical area to be supplied.
  • Data shown are based on average results of production samples and are subject to normal variation during individual tests.
  • and Min. values are given separately for testing purposes.
  • The information contained herein are exclusive property of Mahakoshal.

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