Kiel diagram of T_eff and log g parameters as derived by the binary pipeline for the final sample of binary stars. The dashed line denotes a dwarf-giant distinction given by Zwitter et al. (2018), and the black edge of circles indicates systems where the primary lies above the line. The size of the circles relates to the radius of each star as derived by the binary pipeline, and the contours correspond to the density of the GALAH DR2 results for single stars (see Buder et al. 2018; we only used their results with flag_cannon = 0).