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Change in Joint Efficiency

Change in Joint Efficiency

Change in Joint Efficiency

(OP)
Hi Everyone:

I have a copy of the 1956 ASME Section VIII Code.  back then the maximum joint efficiency they allowed if you did X-Ray and stress relief was 95%.  When did the Code Change and start allowing 100% efficiency?

Jason

RE: Change in Joint Efficiency

Why does it matter what year the Code changed?

If it does, for some reason, then you might contact ASME (www.ASME.org) and ask.  Otherwise, how would you know whether the answer was correct if someone said "It changed in 1980?" (By the way, I don't believe there was a Section VIII Code revision in 1980.)

Patricia Lougheed

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RE: Change in Joint Efficiency

vpl,

I would think that it matters when repairing or altering vessels which may have been manufactured when the maximum joint efficiency was 0.95.

Also, there was a 1980 Edition to Section VIII (Div 1), but I do not know of the specific changes made.

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