Re: [MW:28510] RE: 26879] Weld overlay PD5500

Hi!

Generally up to 5%is acceptable.but you req to approach client or licensor for acceptance As it is very difficult to achieve about 2.5%

Regards

Hegde

Sent from Yahoo Mail on Android

On Sat, 27 Oct 2018 at 10:05, shaji prabhakaran

<shajivaliyakulam@gmail.com> wrote:

Gentlemen,

Regarding the welding procedure for Cupro-Nickel(70/30) cladding on SA516 Gr-70 plate for Sea water heat exchanger, please advise the maximum iron content permitted in clad weld along with any reference standard. Data sheet mentioned undiluted  clad metal thickness. Does it mean the Clad metal surface should be same as the filler metal chemistry?

Thanks in advance

On Sun, Oct 8, 2017 at 5:04 PM PGoswami <pgoswami@quickclic.net> wrote:

Hello Abhishek,

 

Existing ASME Sec-IX qualified PQR's will not meet the requirements of ISO-15614-7(2007 version).Please see the extracts on the dimension of test coupons and various testing requirements.

Note the footnotes are the fine prints.

 

If your organization is in  the business of  fabricating pressure vessels to PD 5500, it's advisable to have separate set of  PQR's qualified to ISO-15614-7 .

 

In fact one PQR may support many required Welding Procedure Specifications  if all the testing are done with good prior thinking.

 

Thanks.

 

P.Goswami.P.Eng, IWE.

Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@quickclic.net,pradip.goswami@gmail.com

 

 

 

-----Original Message-----

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ABHISHEK SINGH

Sent: October 7, 2017 7:58 AM

To: Materials & Welding <materials-welding@googlegroups.com>

Subject: [MW:26879] Weld overlay PD5500

 

Dear Experts,

 

In my Job construction code is PD5500. Can I use Overlay  PQR qualified as per ASME Sec. IX instead of EN15614-7??

 

Regards

Abhishek Singh

 

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