Skip to main content

Re: [MW:22908] Excess penetration measurment in Radiograph

By Materials & Welding
Dear Sundar rajan Kumarswamy,

Please let me know the DEP number...

ವಂದನೆಗಳೊಂದಿಗೆ / Best regards,

Nandesh Kumar Arasappa

P.S. : Please don't print this e-mail unless you really need to.

--------------------------------------------
On Wed, 18/2/15, sundarrajan kumaraswamy <ksraja15@gmail.com> wrote:

Subject: Re: [MW:22905] Excess penetration measurment in Radiograph
To: materials-welding@googlegroups.com
Date: Wednesday, 18 February, 2015, 11:25 PM


Yes, I agree with your Radiography
image, but ASME B 31.3 acceptance criteria is only for
Visual Inspection not forRadiography image,
moreover ball passing test is not specified in ASME
standard,
Any idea
about  Image Contrast graph method, Shell DEP has specified
this test procedure for measuring Excess penetration,

Regards,
K.Sundar Rajan
On 18 February 2015 at
14:39, LALU RAJENDRAN <lalucpt@gmail.com>
wrote:
Hi,
My opinion, in DWSI
superimpose, you can see the excess penetration clearly.
Please refer the attached image.
Please refer table 341.3.2 for
acceptance criteria. However as Mr. Jerald mentioned earlier
you can go for ball passing test to confirm the
ID.

regards,LALULINKS MIDDLE EASTABU DHABI, UAE

On
Wed, Feb 18, 2015 at 12:19 AM, sundarrajan kumaraswamy <ksraja15@gmail.com>
wrote:
  How to measure the excess
penetration from the Radiograph of Small bore piping 
DWDI superimpose Radiograph shows low density near the inner
wall,what is acceptance criteria for excess
penetration as per ASME B 31.3 code, Please clarify the
IMAGE CONTRAST GRAPH method .
Regards,
K.Sundar Rajan




--

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.

To post to this group, send email to materials-welding@googlegroups.com.

Visit this group at http://groups.google.com/group/materials-welding.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/0ff884e9-b935-45ca-b277-d69e2324f37b%40googlegroups.com.

For more options, visit https://groups.google.com/d/optout.






--

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.

To post to this group, send email to materials-welding@googlegroups.com.

Visit this group at http://groups.google.com/group/materials-welding.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAOwU13vQexX%3DOepA_d-7cPvLT2qtovFrg-bMSp2oGCfKDZ_rKA%40mail.gmail.com.

For more options, visit https://groups.google.com/d/optout.






--

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.

To post to this group, send email to materials-welding@googlegroups.com.

Visit this group at http://groups.google.com/group/materials-welding.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAALHs9OvDJrY4mr-gHTH0U0GscJ4cvV5bXRDG87qLdSWtixGBA%40mail.gmail.com.

For more options, visit https://groups.google.com/d/optout.


--
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.
To post to this group, send email to materials-welding@googlegroups.com.
Visit this group at http://groups.google.com/group/materials-welding.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/1424361160.36848.YahooMailBasic%40web193606.mail.sg3.yahoo.com.
For more options, visit https://groups.google.com/d/optout.

Comments

Post a Comment

Popular posts from this blog

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

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

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

By Materials & Welding
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...
Post a Comment
Read more