Laser powder bed fusion (L-PBF) is an innovative manufacturing technique that produces complex and high accuracy components by melting of powder layer-by-layer [1]. However, defects formed during the manufacturing process affect the mechanical properties of a component [2]. To avoid the defects, remelting of tracks is required and thus low process efficiency [3]. In Figure 1 (a) case of cavity formation in which Ac is, the area of the cavity and Av is remelting vertically area of cross-section, and AT is newly generated area of cross-section. (b) The cross-section of melt track is calculated from modeling in which different shades of yellow show the number of remelting during the building of the new track. In this study five samples of 316L stainless steel with hatch distance 20 μm, 50 μm, 80 μm, 110 μm, and 140 μm are studied. EBSD and nanoindentation hardness are used to understand the correlation between hatch distance and microstructure including crystallographic orientation and hardness. MIPAR image analysis software is used to calculate porosity and distinguish different types of defects such as lack of fusion, gas pores, and keyhole defects.