Saturday, April 18, 2009

[MW:1979] Re: WELDER QUALIFICATION

QW-423.1 clearly states "base metal used for welder qualification may be substituted for the metal specified in the WPS in accordance with the following table." That table allows the welder to weld P1 material together with F5 filler while following a P8 qualified procedure.

Regards,

Dale Jones

--- On Fri, 4/17/09, pjoshi@technip.com <pjoshi@technip.com> wrote:

From: pjoshi@technip.com <pjoshi@technip.com>
Subject: [MW:1973] Re: WELDER QUALIFICATION
To: materials-welding@googlegroups.com
Date: Friday, April 17, 2009, 3:16 AM


Dear all,

I would like to add a point here. So far as I understand, you need to use a
qualified procedure for welded qualification as well (Refer QW 301.2). In
this situation, you cannot use any hypothetical WPS (like, P1#P1/F5) unless
otherwise you qualify the same accordingly. I remember we had qualified
such procedure once and for all when I was WE at L&T Hazira Works.

Best regards,

Prasad


                                                                           
             BHARAT GOLE                                                   
             <bharatgole@hotma                                             
             il.com>                                                    To
             Sent by:                  material welding                   
             materials-welding         <materials-welding@googlegroups.com
             @googlegroups.com         >                                   
                                                                        cc
                                                                           
             17/04/09 10:18 AM                                     Subject
                                       [MW:1971] Re: WELDER QUALIFICATION 
                                                                           
             Please respond to                                             
             materials-welding                                             
             @googlegroups.com                                             
                                                                           
                                                                           




Mr. Dale Jones
As you said to weld with F5 stainless steel filler material which is needed
to weld with matching filler on P8 materials.I would like to add
more...i.e. as per QW 423 Alternate Base Materials for welder qualification
we can weld P1 materiel also with F5 SS Filler  in order to qualify welder
for any particular P8 WPS.
This is economical as well as within limit of code.
Please correct me if my interpretation is wrong
Regards

Bharat B. Gole








Date: Thu, 16 Apr 2009 16:26:34 -0700
From: dalejones7978@yahoo.com
Subject: [MW:1970] Re: WELDER QUALIFICATION
To: materials-welding@googlegroups.com
                                                                           
This is correct that the welder can weld on all of these materials but do 
not ignore the other variables. For example the welder will be restricted 
to the Fnumber filler material he qualified with. An example is a SMAW     
qualification. When a welder qualifies on P1 material with a matching F4   
SMAW filler he will be qualified to the base material range stated below   
and with F1-F4 carbon steel filler material. This will not qualify him to 
weld with F5 stainless steel filler material which is needed to weld with 
matching filler on P8 materials. The same concept will apply to various   
other P numberd materials. To fully understand this concept and the other 
variables that will restrict a welders qualifications, read article 3 and 
QW-416 in ASME Section 9                                                   
                                                                           
Regards,                                                                   
                                                                           
Dale Jones                                                                 
                                                                           
--- On Thu, 4/16/09, Muhammed Ibrahim <ibratech@gmail.com> wrote:         
                                                                           
  From: Muhammed Ibrahim <ibratech@gmail.com>                               
  Subject: [MW:1968] Re: WELDER QUALIFICATION                               
  To: materials-welding@googlegroups.com                                   
  Date: Thursday, April 16, 2009, 5:45 AM                                   
                                                                           
                                                                           
                                                                           
  Not only P11. Also P34 & P41 thru P49. The reason is, the skill of the   
  welder required to weld any of these material is same. So he can proove   
  it in any one P No. mentioned .                                           
                                                                           
  Regards,                                                                 
  Muhammed Ibrahim                                                         
                                                                           
                                                                           
  2009/4/16 gaurav mongia <er.gauravmongia@gmail.com>                       
                                                                           
        IF A WELDER IS QUALIFIED FOR P1 material and in code it is written 
        that he is qualified upto P11.                                     
                                                                           
        i wanna know what will be reason that a welder can do welding on   
        all                                                                 
        material upto P11 instead he is only qualified in P1               
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           



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