Re: [MW:8736] SS Pipe Hydrotest Pressure rating chart

Pipe thickness (i.e. schedule) is derived for the design pressure it is supposed to withstand. BAsed on design pressure hydrotest pressure is worked out. It is never vice-versa.
However you can work out the maximum test pressure using Specified Minimum Yield strengh (SMYP) of the pipe in question and use 90% of this value for calculation of test pressure. 
----- Original Message -----
From: prabhu duraisamy
To: materials-welding@googlegroups.com
Sent: Tue, 14 Dec 2010 21:43:13 +0530 (IST)
Subject: [MW:8731] SS Pipe Hydrotest Pressure rating chart

Dear Friends,

 

                    Can you please explain to me, what is the min. Hydro test pressure limit of A312 TP316/316L Seamless pipe 2" to 6" Sch.40 & Sch80. 

 

 

 Thanks

 

 D.Prabhu

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