checking the bases for allowable stresses per K302.3.2 for unlisted material (B31.3 - B705 N06625)in which allowable stress should not exceed 2/3 of Syt, where do you find values for Ry: ratio of avg temp dependent trend curve value of yield strength to room temp yield strength?
per eq (31)...
i am searching for basic allowable stresses for the following material which is not listed in B31.3:
SB-705 N06625 60Ni - 22Cr - 9Mo - 3.5Cb Wld. Pipe Annealed
in the -20 to 1000 degF range
many thanks.