Abrasive jet erosion has diversified contributions in prior-processing (surface conditioning by erosion, cleaning, etc.), direct processing (drilling, cutting operations, surface hardening, etc.), post-processing (removal of hard casting surface, dry polishing, deburring), etc. Surface with required average roughness is needed to be prepared before carrying out cladding, thermal spraying, brazing, painting, etc., and thus, coating material remains in mechanical interlock condition with substrate material. The present work aims at producing required surface roughness of austenitic grade SS 316 work material that is used widely in aerospace, defense, automotive, and chemical industries. Silicon carbide is used as abrasive. Purpose of this study is to find out the ranges of input parameters to have optimum responses. Three input process parameters, i.e., stand-off distance (SOD), abrasive mass flow rate, and abrasive grain size in three levels at a constant 4 kg/cm2 system pressure are used to observe surface roughness, material removal rate, and nozzle wear rate. Minimum nozzle wear rate is desired with maximum material removal rate and desired surface roughness. In such a situation, multi-criteria decision-making process, named the analytical hierarchy process (AHP), is applied to derive the optimal condition successfully.