This data is of a 3d-printed steel cylindrical specimen (nominal diameter 6-millimeter) scanned under monochromatic hard X-ray. The mosaic comprised of 3 horizontal and 6 vertical positions (total 18 scans). The field-of-view for each scan was approximately 2.2 mm wide and 1.4 mm tall with 1.17 micrometer voxel size. With an exposure time of 0.13 milliseconds for 3000 projections, scanning this mosaic took ~2 hours not counting instrument-specific overheads in moving motors to reposition the sample between scans. This resulted in 3000 projections over 180 degrees sample rotation with raw image size 4096 x 4096 (100 gigabytes of raw data at 16-bit precision) that would reconstruct to a 3D volume with 4096^3 voxels. Two versions of the raw-data are shared. The original data (referred to as {4k} volume) with 1.17 micrometer pixel size (3000 projections) and a binned version ({2k} volume) with 2.34 micrometer pixel size (1500 projections).