Submerged entry nozzles in the continuous casting process are subjected to thermomechanical stresses. The optimization of the geometry plays a crucial role in product development. To simulate new geometries realistically under operational conditions, thermomechanical material characterization is required to generate important input data. Of particular importance is the mode I fracture behavior as well as the creep behavior. In this study, an alumina-carbon material was thermo-mechanically characterized. The specific fracture energy was determined from load-displacement curves of wedge splitting tests at room and elevated temperatures, and various quality indices were evaluated based on them to describe thermal shock resistance. The Young's modulus was measured over the entire temperature range using the resonance frequency method. Additionally, creep behavior was investigated through compressive creep tests, and the Norton-Bailey creep parameters were evaluated. In the present study, it was demonstrated that the refractory material under investigation shows the highest resistance to thermal shock at 1400°C. At this temperature, the highest values for the specific fracture energy, the Rst parameter, and the R'''' parameter were determined. Based on compression creep tests, the temperature-dependent parameter K(T) from the Norton-Bailey creep law for the material could be described by a second-order polynomial. Furthermore, the results of the study allowed for further testing of the Gradient Enhanced Damage (GED) model for thermomechanical simulation of quasi-brittle materials.