Material　selection　is　one　of　the　most　important　steps　in　the　manufacturing　process　of　foil　bearing.　In　this　study,　an　experimental　work　is　carried　out　to　study　the　effect　of　operating　temperature　on　the　damping　coefficients　and　the　elastic　modulus　of　Inconel　X-750　and　SUS321.　Then,　the　influence　of　pre-deformation　on　the　damping　coefficients　and　the　elastic　modulus　of　Inconel　X-750　are　discussed.　Finally,　this　paper　calculates　the　rotor　trajectory　supported　by　the　foil　bearing　considering　the　different　pre-deformation　of　the　foil.　The　results　show　that　for　the　foil　bearing　supporting　the　rotor　system　shown　in　this　paper,　the　Inconel　X-750　with　10%　pre-deformation　is　the　best　choice.　©　2020　Kauno　Technologijos　Universitetas.　All　rights　reserved.