Increasing demands on aircraft bearing steels require the application of carburized materials like the M50NiL. Due to its limited corrosion resistance new materials with increased resistance against corrosion, like CSS42L and Pyrowear675, were developed. Corrosion as well as mechanical and tribological properties of carbon containing Cr steels depend on the tempering temperature. Consequently, this thesis investigates the influence of tempering the CSS42L and the Pyrowear675 below and above the secondary hardening maximum (SHM) whether this yields to improved corrosion resistance and comparable mechanical and tribological properties. As a reference material the M50NiL was used for the residual stress profile, the mechanical and tribological properties and the 440C for the corrosion resistance. All measurements were conducted at a surface hardness of 61HRC. This hardness value was achieved by tempering at suitable temperatures below and above the SHM. The results of the corrosion measurements point out, that both materials have a better resistance against corrosion in comparison to the 440C at tempering temperatures below the SHM. At temperatures above the SHM the corrosion resistance of both materials decreases, however the corrosion resistance of the CSS42L is still better than the corrosion resistance of the 440C. Generally an application of CSS42L and Pyrowear675 as aircraft bearing steels seems to be only possible if their carburization and heat treatments are improved.