Re: Re: [MW:4575] problem with progression

Hi all,
My answers are:
a) It will be maintained uphill progression.
b) Welders pocisión maintain the same, you must indicate which section did each of them for purposes of control of the joiny.
c) To test of hardness and impact toughness, see API 1104, appendix A, A.3.2.

I hope to be successful in my answers.
Kind regards.

Gustavo Mendoza.
QA/QC Inspector.
Venezuela.

mar 16, 2010 12:13:24 AM, materials-welding@googlegroups.com wrote:

===========================================


The uphill position must be used hardness & toughness testing

--- On Mon, 15/3/10, Sreejith.Nair  wrote:

From: Sreejith.Nair
Subject: [MW:4569] problem with progression
To: materials-welding@googlegroups.com
Date: Monday, 15 March, 2010, 5:48 PM

hi all,
         I'm encountering an interesting sfor hardness and impact toughness ituation. My WPS  progression is as follows

 RP-up, Hot- up, fill & cap  - downhill.

(dia-36" No of welders =2,Mat=API 5LX70, code = api1104,toughness and hardess requirements)

Now after root pass due to some unavoidable conditions the pipe has been rotated 90 degrees (12 o clock rotated to 3 o clock). Now considering one half

section of the pipe half portion is welded uphill with one welder and half downhill with the other welder

a) What should be the progression of next pass
b) How the welders must be allocated
c) What area (if required) must be selected for hardness and impact toughness testing.

hope the experts will comment



Sreejith Nair
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