A composition for a refractory material comprising a base mixture having a composition in oxide (mol %) as follows: SiO2 between 69% and 73%; Al2O3 between 22% and 28%; TiO2 between 0.4% and 1%; Fe2O3 between 0.2% and 1%; CaO between 0.1% and 1%; MgO between 0.1% and 1%; K2O between 0.5% and 2%; Na2O between 0.1% and 0.5%; and comprising a filler mixture comprising at least one from between a schamotte and a smelting agent.