What is Bulk Density – BD of Refractory Bricks ?

The bulk density of refractory bricks is a property that indicates the mass per unit volume of the bricks. It is typically expressed in units such as kilograms per cubic meter (kg/m³) or pounds per cubic foot (lb/ft³). The bulk density of refractory bricks can vary depending on their composition, manufacturing process, and intended use.

Refractory bricks are designed to withstand high temperatures and harsh environments, and their bulk density is an important characteristic because it affects various aspects of their performance, including thermal conductivity, thermal expansion, and resistance to thermal shock.

Typically, refractory bricks have bulk densities that range from about 2,000 kg/m³ (125 lb/ft³) to 3,500 kg/m³ (218 lb/ft³) or even higher. Lightweight refractory bricks, which are designed for applications where reduced thermal mass is important, may have lower bulk densities in the range of 1,000 kg/m³ (62 lb/ft³) to 2,000 kg/m³ (125 lb/ft³).