The discussion focuses on the mechanical properties of 303 stainless steel at elevated temperatures, particularly around 800°C. Participants seek information on yield strength (YS), ultimate tensile strength (UTS), modulus, and Poisson's ratio, as well as the material's resistance to scaling at high temperatures.
Participants generally agree that 303 stainless steel has limitations at high temperatures, particularly regarding intergranular corrosion. However, there is no consensus on the specific mechanical properties available for 303 at elevated temperatures, and multiple views on its performance compared to other stainless steels remain.
There are limitations in the available data for 303 stainless steel properties at high temperatures, and the discussion highlights the dependence on specific conditions and definitions regarding temperature ranges and service types.
You might consult these links:yangshi said:Does anyone have a source for 303 stainless steel mechanical properties (YS, UTS, modulus, poisson's) with variation to temperature, especially around 800C? I've been searching a lot of sites... Or would it be fine to assume 303 has "good resistance to scaling at up to 871C" from http://www.suppliersonline.com/propertypages/303.asp?
Interlloy said:Elevated Temperature Properties
303 displays good oxidation resistance in continuous service up to 870 °C and in intermittent service up to 760 °C.
Continuous service however, between 430 °C and 850 °C is not recommended, nor is slow cooling through this range due to the problem of intergranular corrosion.
N.B. High temperature use is therefore not generally recommended.