Skip to main content

Re: [MW:26625] WQT- Electrode

Many important user specs do not allow GMAW for pressure applications since it is prone to lack of fusion. It us advisable to use FCAW instead 



Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: 'c sridhar' via Materials & Welding <materials-welding@googlegroups.com>
Date: 17/06/2017 21:57 (GMT+04:00)
To: materials-welding@googlegroups.com
Cc: SHANKAR SHIVARATRI <sshankarirs@gmail.com>
Subject: Re: [MW:26617] WQT- Electrode

LPG bottle are welding using  SAW or MAG process now a days.Both are good
processes and helps to get higher productivity.

MAG with 1.20 mm size ER 70S-6 filler wire along with Argon + CO2 ( 20 % )
is very popular and much in use now a days. SMAW process is a slow process
and not used of late.
Sridhar.



From: Ammar Shaikh <ammar.ali.shaikh@gmail.com>
To: materials-welding@googlegroups.com
Cc: SHANKAR SHIVARATRI <sshankarirs@gmail.com>
Sent: Friday, 16 June 2017 9:28 PM
Subject: Re: [MW:26614] WQT- Electrode

7018 or 7010 Should be defined by WPS and validated by PQR.

On Tue, Jun 13, 2017 at 12:44 PM, Shankar S <sshankar.irs@gmail.com> wrote:
Dear experts,

At one particular LPG bottling plant contractor proposed  WQT approval root run as E6010 and fill as E7010.  I have doubt that E7018 is suppose use for fill up only. 

Project: Pipeline. Pipe specification PSL2( API)-  Oil & Gas. Ref. standards: API 1104, ASME B 31.4/8.

Please suggest accordingly.

Thanks in Advance.

regards,
Shankar
Hyderabad India.
--
https://materials-welding. blogspot.com/
https://www.linkedin.com/ groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@ googlegroups.com.
Visit this group at https://groups.google.com/ group/materials-welding.
For more options, visit https://groups.google.com/d/ optout.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.


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...