Hi all,

If any is having a copy of ASME 31.1 power piping code of year 1983/77 please provide me the maximum allowable shear stress values for following materials as per 30yr previous standards

A106 Gr B at 650, 700 and 750 F
A 335 P22 at 1000, 1050F
A 385 P22 at 1000 and 1050F


It would be gr8 help if any one can provide me the maximum allowable shear stress for these materials as per the 1977/83 standards of ANSI/ASME 31.1 power piping

Thanks and regards