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reichertc
Mechanical
- Mar 21, 2001
- 115
I am currently working on a project to modify existing piping in an old refinery. I want to do a tie in to some A155 Gr.C55 EFW pipe. This ASTM spec was discontinued in 1978. I do have a copy of the allowable stress tables from B31.3-76. Does B31.3 allow the use of old allowable stress values for new calculations where the material is no longer available? Or should I be using current values for the corresponding material?
I guess the next question would be, does anyone know what the current material that would correspond to A155 Gr.C55 EFW would be? I believe that it would be covered by ASTM A671 or A672, but I am unable to find a copy of the old A155 spec for comparison.
Any input would be greatly appreciated.
I guess the next question would be, does anyone know what the current material that would correspond to A155 Gr.C55 EFW would be? I believe that it would be covered by ASTM A671 or A672, but I am unable to find a copy of the old A155 spec for comparison.
Any input would be greatly appreciated.