Dear Mr. Azmi,
Your case PWHT is service requirement.
I think you can see a good difference in hardeness in Weld and HAZ area.
If you are going for destructive testing, you will find the difference in Impact properties ass well as CTOD testing.
On Sun, Nov 4, 2012 at 11:43 AM, asad azmi <azmiasadayub@gmail.com> wrote:
--Dear All,Greetings.A vessel is being fabricated as per ASME SECTION VIII DIV 1.a vessel requires PWHT becuase of the Service requirment.Shell plate material is SA537 CL1 - 36 mm thickness. maaterial is in NORAMALIZED Condition.MTC is not highlighitng any PWHT( STRESS RELIEVING) done for the test coupons before conducting Mechanical testing.My Question is - as vessel requires PWHT , how we will confirm the effect of PWHT on mechanical proerties for the base material without conducting PWHT on the test coupon of the shell plate before conducting Mechanical test.Please give code reference.Thanks & RegardsAsad Azmi
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Thanks & Regards
Biplab Pal
Welding Inspector
Biplab Pal
Welding Inspector
E-mail: biplab.mech@gmail.com
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