For Pipe Stress Analysis, the properties for Duplex alloy UNS S31803 can be used for Duplex alloy UNS S32205. Many manufacturers offer UNS S32205 in leu of UNS S31803. They are the same except that UNS S32205 has a narrower pecentage range on some of the alloy's elements.
UNS S32205 is equivalent to UNS S31803 but not vice-versa, but all of the properties for stress anaylsis are the same.
The material UNS S31803 is in CAESAR and B31.3 as long as you don't need any temperatures below 21.111111 deg. C.
Good Luck,
_________________________
NozzleTwister