SA-285 Gr. C & SA-106 Gr. B, ASME 1971 edition

[hcjulien]

Hi,

We are searching for the Maximum Allowable Stress Value (S) of the ASME Section VIII div. 1, 1971 edition or equivalent of the SA-285 Gr. C and the SA-106 Gr. B at 650F.

Can you give us the original values of these material specifications to be able to do minimum thicknesses UG-27/UG-37/UG-45 calculations?

Appreciate your help,

hcjulien

 

[stanweld]

Divide the Minimum Specified Tensile Strength by 4.

 

[unclesyd]

Here are the values from 1965 edition. I don't think they were changed between 1965 and 1971. I believe these numbers will get you in the ballpark.

SA-285 Gr C @ 650F 13,750

SA-105 Gr B (II) @ 650F 17,500
SA-105 is listed as a forging type I or II.

 

[vesselfab]

106-b was 15,000 psi @ 650F I believe

 

[unclesyd]

hcjulien and vesselfab,

My mistake.

You are correct about SA 106 Gr B being 15,000. That is what I first wrote and for some unknown reason changed it SA-105 without rereading the OP.