Skip to main content

[MW:3292] RE: 3277] Radiography for Welded fittings

Dear All,

 

  1. Butt weld: RT or UT (for above thickness 12.5 mm)
  2. Fillet weld: MT (Preferred) or PT
  3. Extent of testing shall be based on temperature and pressure (conditions service). It can be classified according to conditions of service such as Class 1, 2, 3 then extent of testing shall be rated accordingly: 100%, 50%, 10%, etc.,,

 

Regards

 

TRAN VAN VUONG

PHATECO

Pha Rung Technical Services JSC.

Inspection Services

Add: 308 Van Cao Str., Haiphong City, Vietnam

Tel: +84 31 6 260 254

Fax: +84 31 3 559 448

Email: admin@phateco.com

Website: www.phateco.com


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of desaid@toyoindia.com
Sent: Tuesday, September 22, 2009 9:02 PM
To: materials-welding@googlegroups.com
Subject: [MW:3277] <Security Level 2>Radiography for Welded fittings

 


Dear all,

I have some basic question on piping specification preparation.

Carbon steel specification is having CS pipe : Material A672 GR.B60 CL.22 for size up to 40"

Corresponding welded fittings if i am considering above size 14"; shall be 100% radiographed??

Pls. help / reply.

Thanks & Regards,
Dhwani Desai
Planning & Piping Dept.
Ext.-7681</font


--~--~---------~--~----~------------~-------~--~----~
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...