I am trying to find the yield strength of ASTM A193 Grade B16 at 900 deg F. Can anyone tell me where to go to find this information? So far my feable attempts have been unawarding. Your help is greatly appreciated.
Fig. 2.3.1.1.1 in MIL-HDBK-5H shows that low-alloy steels (the classification they use for a Cr-Mo-V type steel) would retain approximately 50 % of their tensile strength at 900 F, for an exposure time of 1/2 hour. You can obtain this document from the following website (warning: HUGE DOWNLOAD):