Sunday, March 18, 2012

[MW:13920] Impact test requirements as per UG 84

Dear Experts
I have to prepare a PQR for SA 516 Gr.70 plate of 50mm thick.
I am using GTAW+SMAW+SAW(10mm+20mm+20mm)
My doubt is how many test specimen i have take for impact test
Is that i have to take HAZ & WELD from each process.
Please expalin.
And as per UCS 56, I am going to do PWHT.
Then can i take twice the holding time to considering the on job repair.
Is that acceptable
Please advise
Samshuddin.K
Asst QA Engineer
NKOM QATAR

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