303 Stainless Steel Properties at High Temps

[yangshi]

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?

 

[SteamKing]

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?

You might consult these links:

http://www.ssina.com/composition/temperature.html

http://www.nickelinstitute.org/~/Media/Files/TechnicalLiterature/High_TemperatureCharacteristicsofStainlessSteel_9004_.pdf

 

[yangshi]

Thanks for the quick reply. Lots of 304 data but nothing on 303. Though, 303 and 304 properties are fairly close, except for UTS.

 

[HowlerMonkey]

There is a 304L that is more resistant to scaling and 321 is also better at high temperatures.

 

[Baluncore]

See; http://www.interlloy.com.au/our-products/stainless-steel/303-austenitic-stainless-steel-bar/

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.