This study aimed at assessing the mechanical properties of tubbings operating
under conditions of elevated temperatures. Hot tensile (standard ASTM-E 21) and
creep (standard ASTM-E 139) measurements were made in tubbings of Stainless
Steel (A268/Tp 446 and APM/ kanthal alloy) at different levels of velocity and
temperature. Each of these data sets has been separately analyzed according to
their own methodologies. The method employed for creep result extrapolation was
the Larson – Miller method. Hot tensile and creep testing allowed to proving that
the APM/Kanthal alloy steel is superior to the A268/Tp 446 steel under elevated
temperature conditions, both for short and long testing times.
Key words: Stainless Steel, Hot Tensile Testing, Creep, Oxidation at high
temperatures