Skip to main content

Re: [MW:12746] About welder Qualification as per API 1104

For welder qualification in API 1104,you can use material from any  Group A,B,C
 
Rajesh

--- On Fri, 10/21/11, praneet varma <praneethm14@gmail.com> wrote:

From: praneet varma <praneethm14@gmail.com>
Subject: Re: [MW:12743] About welder Qualification as per API 1104
To: materials-welding@googlegroups.com
Date: Friday, October 21, 2011, 6:23 AM

Dear Mr.harish,
 
You can reffer 5.4.2.2  in  API-1104 ,for Base material gruops As Group-A,Group-B,Group-C.depending up on the yield strength.
 
Thanks&Regards,
 
 
 
 
 
 
 


 
On Sat, Oct 15, 2011 at 1:36 PM, HERISH VARUDE <harish.varude02@gmail.com> wrote:
Dear All Expert ,

I want to know about welder qualification,

If i use API 5L Gr B and API 5L x 52 Gr pipe in one project. Both are different group material As per API 1104 i want both different 

Qualify welding procedure(WPS).But as per API 1104 Base material is not mention.(see 6.2.2 in API 1104)So can i one time qualify 

welder in API 5L Gr B or Gr x 52?will be welder qualify in both WPS?


Remark:

1)Welding Process is same for both wps.

2)Electrode is also same in both wps.

3)Outside dia and thickness is aslo same  in both wps.

4)Only Base material is change in both wps.



So please solve my quarry about it. 

--
Best Regards,

Herish varude
7600046047
(Aneri construction Pvt.Ltd)

--
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.

--
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.

--
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

Popular posts from this blog

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

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...

Materails FAQs

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...

The Schaeffler and Delong diagrams for predicting ferrite levels in austenitic stainless steel welds

Introduction Ferrite is important in avoiding hot cracking in during cooling from welding of austenitic stainless steels. 'Constitution diagrams' are used to predict ferrite levels from the composition by comparing the effects of austenite and ferrite stabilising elements. The Schaeffler and Delong diagrams are the original methods of predicting the phase balances in austenitic stainless steel welds. Nickel and chromium equivalents A 'nickel equivalent' is calculated for the austenite stabilising elements and a 'chromium equivalent' ferrite stabilising elements. These are used as the axes for the diagrams, which show the compositional equivalent areas where the phases austenite, ferrite, martensite (and mixtures of these) should be present. Although intended to show the phase balance of weld fillers, these diagrams can also be used to illustrate the phase balance of the 'parent' material. There are different diagrams for dif...