Insulating LD-1.5 Conventional Castables

Insulating LD-1.5 is the 45-50% Al₂O₃ grade in our conventional castables range, rated to 1300°C. Typical catalogue values: Al₂O₃ content 45-50%; cement content 20-25%; bulk density 1.50 g/cc; cold crushing strength 6 MPa; thermal conductivity 0.40 W/mK; max service temperature 1300°C. Confirm the exact figures on the grade datasheet before specifying.

Insulating LD-1.5 carries 45-50% Al₂O₃.

Applications for the conventional castables range include backup linings behind LCC / dense brick working linings, boiler furnace front and rear walls (non-hot-face), industrial waste incinerator general lining, heat treatment furnace walls and roof, soaking pit backup and chimney bottom, brick-cast hybrid lining where minor repairs and adjustments are needed, foundry ladle backup and trough lining and cement preheater bottom and meal chute. Grade selection depends on your operating conditions; send them to us and we will confirm Insulating LD-1.5 or a neighbouring grade.

Insulating LD-1.5: 45-50% Al₂O₃, rated to 1300°C. 40% Al₂O₃ Castable: 38-42% Al₂O₃, rated to 1300°C. Higher alumina generally brings higher refractoriness and slag resistance. Send us your application and operating temperature and we will confirm the grade.

Send your application, operating temperature, lining area and quantity through the quote form, WhatsApp or +91 98999 57888. Same-day dispatch of standard stock items from Delhi; other items are confirmed with the quotation. Pricing is quoted per enquiry.