Skip to main content

[MW:2266] Re: about WQT

By Materials & Welding
WQT aims at judging welder's ability to deposit sound weld using a given electrode/filler and the qualified process per the WPS. The material on which to deposit does not matter.

--- On Thu, 28/5/09, Sukamal Naskar <sukamalbecmet@gmail.com> wrote:

From: Sukamal Naskar <sukamalbecmet@gmail.com>
Subject: [MW:2265] Re: about WQT
To: materials-welding@googlegroups.com
Date: Thursday, 28 May, 2009, 10:44 AM


According to QW-423.1 & QW-433, you can qualify the welder for P No. 1
material using F No.43 consumable. As long as your are not changing
the process GTAW, the welder can be qualified , provided other
essential variables of the GTAW process for the welder qualification
doesn't change.

Regards,
SUKAMAL NASKAR
WELDING ENGINEER

On 5/28/09, Muhammed Ibrahim <ibratech@gmail.com> wrote:
> You have to follow a WPS to qualify a welder.. Your WPS with P45 material
> will not allow you to weld on P1 material. You have to qualify a Procedure
> with P1 material with F43 consumable. With that procedure  you can qualify
> the welder.
>
> Regards,
> Muhammed Ibrahim
>
> 2009/5/27 tamizazagan nagappan <tamizazagann@gmail.com>
>
>>
>>
>> I have wps for P45 material incoloy 825 UNS -08825, ASTM SB 462/464 UNS
>> (N08020) NACE with filler metal F43 SFA 5.14  AWS    Er-Ni-Cr-Mo-3...
>>
>> Is it possible to qualify the welder with A333 Gr 6 base metal  with
>> filler
>> metal F43  SFA 5.14  AWS    Er-Ni-Cr-Mo-3...
>>
>>
>>
>> --
>> TAMIL
>> phone: +77023210394
>>
>>
>>
>>
>>
>>
>> --
>> TAMIL
>> phone: +77023210394
>>
>>  Save a tree...please don't print this e-mail unless you really need
>> toRegards
>>
>>
>>
>> >
>>
>
>
> --
> Thanks & Regards
> Muhammed Ibrahim PK
>
> >
>


--
Sukamal Naskar
Malaysia

Cricket on your mind? Visit the ultimate cricket website. Enter now! --~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---

Comments

Post a Comment

Popular posts from this blog

Materails FAQs

By Materials & Welding
Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...
21 comments
Read more

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

By Materials & Welding
Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change.   Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...
Post a Comment
Read more

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

By Materials & Welding
Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...
Post a Comment
Read more