Re: [MW:19669] CS welder can possible SS welding...

 

QW-423 Alternate Base Materials for Welder

Qualification

QW-423.1 Base metal used for welder qualification

may be substituted for the metal specified in the WPS in

accordance with the following table. When a base metal

shown in the left column is used for welder qualification,

the welder is qualified to weld all combinations of base

metals shown in the right column, including unassigned

metals of similar chemical composition to these metals

 

 

 

Qualification Base Metals

P-No. 1 through P-No. 15F, P-No. 1 through P-No. 15F,

P-No. 34, and P-No. 41 P-No. 34, and P-No. 41

through P-No. 49 through P-No. 49

P-No. 21 through P-No. 26 P-No. 21 through P-No. 26

P-No. 51 through P-No. 53 or P-No. 51 through P-No. 53 and

P-No. 61 and P-No. 62 P-No. 61 and P-No. 6

From: tugrulhan özdemir <tugrulhan9@gmail.com>
To: materials-welding@googlegroups.com
Sent: Saturday, 21 December 2013, 9:27
Subject: Re: [MW:19664] CS welder can possible SS welding...

Hi

What about P numbers for CS and SS ?

Saygılarımla / Regards

-

Tuğrulhan ÖZDEMİR

API 653 AI, Welding & Materials Eng.

Iraq mobile number: +964 782 311 67 81

2013/12/8 Brajendra Singh <brajendrasingh523@gmail.com>

yes he is also qualified for ss pipe because as per ASME sec IX addition of inert gas backing is not a essential variable so he is qalifed for both with or without gas purging.

On Sat, Dec 7, 2013 at 10:46 PM, Amit Singh <kshtriya.amit@gmail.com> wrote:

As ASME Sec 9 removal of inert gas backing is essential variable so as per code yes , & same is not for a SS welder welding CS joint
Amit Singh
Sent from my iPhone

On 07-Dec-2013, at 21:25, PK M <pkmqaqc@gmail.com> wrote:

Dear Experts,

Please explain a welder is qualified on ½ inch dia Carbon steel pipe butt joint with GTAW process. So he can weld on ½ inch dia stainless steel pipe butt joint with GTAW process. If any problem for material composition?

Thanks,

Pkm.

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Thanks & Regards,

Brajendra  Singh Patel

Welding Engineer

pune, India

cont:+919325085748

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