Interpass temperature is defined in QW/QB-492. Measurement of it can be made using Temperature indicating crayons, contact or infrared pyrometers, etc. It need not be measured during procedure qualification or recorded on the PQR unless impact testing is required. It is also an essential variable fpr Weld Overlay qualification.
Gene Matsko
On Sunday, August 22, 2021, 10:10:40 PM CDT, Rameez khan RK <rk.rameezkhan21@gmail.com> wrote:
Hello Experts,
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Can any one tell me about interpass temperature for carbon steel pipe as [per code and standards.
WE facing one issue here our Approved PQR interpass temp. is 290 but in WPS its mention 340 c so please defined and what is actually interpass temp as per codes per standards.
thank you
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