Hot Isostatic Pressing (HIP) is widely used today to eliminate internal defects in components to achieve improved material properties like ductility and fatigue. With today’s modern HIP systems there are possibilities to incorporate more process steps into the HIP process. These process steps can be stress relief, solutionizing, quenching, ageing, tempering etc. performed in the same equipment during the same cycle which makes a very effective process route. This presentation will focus on the possibilities to perform solutionizing and quench directly in the HIP system for a typical QT steels and evaluate how HIP quench compares to water and oil quench as well as how the austenite to perlite transformation react under pressure.