Material characteristic of Fittings (Elbows, Reducers, Tees)
Material characteristic of Fittings (Elbows, Reducers, Tees)
(OP)
Would there be any difference in the material characteristics of WPHY 42 and WPB with a minimum of 42,000 yield. What is the effect if the WPB with 42K yield is used in lieu of the WPHY 42?
I am aware that WPHY is generally associated with higher yields like WPHY 60 but this time we are only asked for 42k yield and I want to know if the WPB (42k min yield) would generally be accepted as a substitute.
I am aware that WPHY is generally associated with higher yields like WPHY 60 but this time we are only asked for 42k yield and I want to know if the WPB (42k min yield) would generally be accepted as a substitute.





RE: Material characteristic of Fittings (Elbows, Reducers, Tees)
ASTM A234 WPC yield stress is 40 ksi
WPHY is an MSS SP-75 designation for higher yield strength fittings 42 = 42 ksi, 60 = 60 ksi, etc.
Because of the different yield strengths associated with each one, none could be considered equal.
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RE: Material characteristic of Fittings (Elbows, Reducers, Tees)
My understanding is that the A234 WPB has a minimum yield of 32ksi as you stated. However I have material test reports showing this A234 WPB with yields from 43100 - 49400 ksi (They exceed the minimum yield). This would fall within the parameters of the MSS SP-75 WPHY 42 for yield. Other than yield which this WPB material meets, are there any other differences that I should consider or should know about if we decide to substitute this material?
I have attached the material test report for the A234 WPB which shows the yields.
RE: Material characteristic of Fittings (Elbows, Reducers, Tees)
**********************
"The problem isn't finding the solution, its trying to get to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: Material characteristic of Fittings (Elbows, Reducers, Tees)
RE: Material characteristic of Fittings (Elbows, Reducers, Tees)
**********************
"The problem isn't finding the solution, its trying to get to the real question." BigInch
http://virtualpipeline.spaces.live.com/