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We are performing hydro tests outdoors in Alberta right now. I have been questioned about the effect on strength reduction when testing at lower temperature. I recall seeing a chart or graph where strength reduction was plotted against temperature. Can anyone assist here please??? We don't have...

The lads overpressured a couple spools during a hydrotest in our yard. The Line class/spec sheet calls for a 345Psi test and we tested at 430psi. I am trying to figure out how to evaluated the test pressure from the foundry to see if we came close to yielding the pipe. The MTR indicates...