This paper is concerned with the behaviour of stainless steel reinforced concrete flexural members during a fire. Recent years have seen a steady increase in the usage of stainless steel reinforcement as an attractive alternative to traditional carbon steel reinforcement. This is mainly owing to its favourable and sustainable attributes, including the excellent corrosion resistance, which can result in a long, maintenance-free life. However, there is a lack of useful performance data and design guidance in the available literature. Therefore, the current paper discusses an experimental and numerical assessment of the behaviour of stainless steel reinforced concrete (SS RC) structural elements during a fire. A material-level test programme was undertaken at Brunel University London to determine the response of stainless steel reinforcement during exposure to different levels of elevated temperature. This data was not previously available. Thereafter, the paper outlines a finite element model which was developed to simulate the response of stainless steel reinforced concrete beams. The model is validated against available data, and then employed to investigate the relative influence of the most salient parameters on the fire behaviour. In particular, the behaviour is compared to that of traditional carbon steel reinforced concrete (CS RC) beams and it is shown that the stainless steel reinforced members behave better in terms of load carrying capacity and sustain fire much longer time than that for the CS RC beam. Additionally, the SS RC beams has higher deflection during the fire exposure in comparison to the CS RC beams.