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Thanks for information. Odd01

Hi, Is there someone that know where to find in ASME standard where it is mention holding time after welding before NDT can be carry out(example 24h after welding). Tanks, Odd01

Thanks to all for your feedback. BR,Odd01

Hi, I have look into ASME IX QW-100 and QW-451.1 to trial to find if there is any requirement for hardness for a welding qualification for Carbon steel in weldmetal and HAZ, and in addition if there is any hardness requirement related to if PWHT need to be done(to hight hardness value, but could...

Thanks to all of you for helpful information. Regards, Odd01

Hi, I have look into the ASME IX QW-322 related to validity/expiration of a welder cerificat and there is only mention that the welding operator certificate shall be "affected" when he has not welded with a process during a periode of 6 months or more, or there is a specific reason to question...

Thanks for your information, and customer have accept that the supplier don't need to qualify for a new PQR or make a test with PWHT temp. at 620 deg.C to prove the mechanical properties.

Thanks for your answer metengr. Question no.1 In the WPS they have specify a range with 580+/-10 deg.C,and not a range from 580 - 620 deg.C If I understand you correct you mean that the PQR is still valid as long as the PWHT temperature is below the lower transformation temperature A1(723...

The two question is not a student posting but a real case related to our sub-supplier that have do this two thing that is not according to the PQR and WPS, and then ask this question if someone could tell me if this is accepted according to ASME code or not?

Hi, Question no. 1 The PQR is qualified with PWHT according to ASME IX with a temperature at 580 deg.C, but the product was PWHT with a temperature at 620 deg.C Is the PQR still valid accoding to ASME code since the product temperature is 30 deg. C higher then temperature for...