Skip to main content

[MW:701] Re: 698] Re: PMI TESTING OF SS 304L

By Materials & Welding
XRF can only detect elements with atomic numbers greater than 21 i.e.
starting with Titanium onwards. Therefore, it cannot quantify C, S, P, etc.
So, it can tell the difference between SS304 and SS316, but not SS316 and
SS316L.

OES can detect all the elements including carbon, so it can be used very
conveniently for segregating even SS316 and SS316L.

Regards,

Kartik Iyer.
ELCA Laboratories.


----- Original Message -----
From: "Bathula Raghuram (Mumbai - PIPING)" <R.Bathula@ticb.com>
To: <materials-welding@googlegroups.com>
Sent: Thursday, March 27, 2008 7:22 PM
Subject: [MW:699] RE: 698] Re: PMI TESTING OF SS 304L


that's one of the main diff between OES and XRF analysers, where XRF
analysers can't detect %C and trace elements like S,P etc....


-----Original Message-----
From: materials-welding@googlegroups.com on behalf of shailesh dave
Sent: Wed 26/03/2008 18:30
To: materials-welding@googlegroups.com
Subject: [MW:698] Re: PMI TESTING OF SS 304L

DEAR PINAKIN,

THANKS FOR THE REPLY. IN THAT CASE HOW TO DIFFERNTIATE SS304 FROM 304L AND
SS316 FROM 316L. IF WE CAN NOT ANALYSE CARBON %.

REGARDS,

S.N.DAVE

pinakin jani <pbjani50@yahoo.co.in> wrote:
Dear Dave,
PMI can tell you the % of the contains like Ni, mo etc. Based on this % we
can check our requirement.

Regards,

Jani Pinakin


----- Original Message ----
From: Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com>
To: materials-welding@googlegroups.com
Sent: Monday, 24 March, 2008 2:42:02 PM
Subject: [MW:686] PMI TESTING OF SS 304L

Probably spectro isort by Amtek can detect C, (thou I have not
used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C


---------------------------------

From: shailesh dave [mailto: snd2988@yahoo.com ]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L


DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF
SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH , SAUDI ARABIA


---------------------------------
Get the freedom to save as many mails as you wish. Click here to know how.


---------------------------------
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it
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