Re: [MW:22836] Fw: QW 403.6. QW451, QW401.3 notch toughness, combination PQR's
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Raghuram Bathula
Feb 9, 2015, 10:47:34 PM2/9/15
to Materials-Welding
Q1: since full mechanical tests are not done on 5mm coupon, the combination will qualify from 5mm and not 2.5mm (QW451.1)
On 9 February 2015 at 21:38, 'Ahmed Husain' via Materials & Welding <material...@googlegroups.com> wrote:
Dear All,I have one query regarding below ASME IX interpretation.How come this three PQR jointly will support a WPS with notch toughness test for thickness 4.8 mm to 57 mm? if your answer is also yes, than why answer is No for first question?Appreciate your expert reply.A.H. Sidd
Ahmed Husain
Feb 11, 2015, 1:11:33 PM2/11/15
to material...@googlegroups.com
In this case, if PQR of 5 mm coupon is not considered, than, minimum qualified thickness with notch toughness should be 12 mm based on ASME IX, para 403.6, not 4.8 mm.
Appreciate your response.
Regards,
A.H. Sidd
From: Raghuram Bathula <raghura...@gmail.com>
To: Materials-Welding <material...@googlegroups.com>
Sent: Tuesday, February 10, 2015 6:46 AM
Subject: Re: [MW:22840] Fw: QW 403.6. QW451, QW401.3 notch toughness, combination PQR's
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Raghuram Bathula
Feb 11, 2015, 1:16:22 PM2/11/15
to Materials-Welding
it will be considered only for impact thickness limits. and not as a separate PQR
Mohit Aggarwal
Feb 12, 2015, 10:00:58 PM2/12/15
to materials-welding
Dear Sir,
In 2.5 mm thk of base metal if you take, is it possible to do impact testing after final machining.As per Ug-84, Impact specimen can't be make from 2.5 mm thk!
Best Regards,
Mohit Aggarwal.
Raghuram Bathula
Feb 12, 2015, 11:20:55 PM2/12/15
to Materials-Welding
you have got the answer, it is exempted from impact
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