Stress-strain curves of the Luhui granite with varied thermal-damaged degrees

This dataset provides the unconfined compressive stress-strain curves of the Luhui granite with a moderate grain size after treated by the room temperature (25 °C), 400 °C and 600 °C, which were originally tested by Kang et al. (2021). The data were obtained from digitized curves of Fig. 10b in the published paper "Kang F , Li Y , Tang C . Grain size heterogeneity controls strengthening to weakening of granite over high-temperature treatment[J]. International Journal of Rock Mechanics and Mining Sciences, 2021, 145:104848".