Data corresponding to the figures in the associated paper. Data is provided for samples of identical composition (Ti-24Nb-4Zr-8Sn wt%) solution treated at 900C for 30 min under vacuum, cooled at different rates. Data includes X-ray diffraction data (.xy files), DSC data (.txt files), EBSD data (.ctf files), ECCI micrographs (.tiff files) and mechanical testing data (.csv files). Please refer to the associated manuscript for more details. EBSD data was processed using Channel 5 Tango software to generate IPF maps and misorientation data.