[MW:1326] Re: about heating of ss316 pipe

As per the first mail, if the heating was just to remove the surface moisture, it will not be a problem, the temperature may
 be around 100 deg C. as per ASME Sec-II part D, A-320 , the sensitization temp 425 -870 deg C, I don't think to remove the moisture from the tube surface need so much temp .& the sufficient time to for the sensitization.

 

On Wed, Nov 19, 2008 at 2:21 AM, Ali Asghari <ghariali@rocketmail.com> wrote:

hi

i think the heating the pipe isn't correct .it may occur sensitization.i think the dropping water play a good role ,that it's decrease the cooling rate in base metal,therefore the possibility of carbide cr decreases.

---

From: pradip kumar gupta <pkgpanki@gmail.com>
To: materials-welding@googlegroups.com
Sent: Monday, November 17, 2008 9:32:51 PM
Subject: [MW:1322] about heating of ss316 pipe

we were welding a ss316 pipe ,and there were some water drops so we heated it with gas cutting set to evaporate, was this correct or not? if not then why? can any one tell me what will be effect of heating on ss316 pipe.

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

Subscribe to: Post Comments (Atom)

Re: [MW:35289] Welding consumable for S355J2WP material

S355 J2 WP  is a weathering structural steel  It has better atmospheric corrosion resistance. Use E 8018 - W1/W2  Electrodes This is regular...

• Materails FAQs

  Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? ...
• RE: [MW:5585] Buttering of weld joints

  Definition of buttering from ASME Section IX, QW/QB-492 Definitions:   Buttering:  the addition of material, by welding, on one or bot...
• 

  WELD AND WELDING SYMBOLS

  Section I. PRINT READING 3-1. GENERAL a. Drawings . Drawing or sketching is a universal language used to convey all necessary information to...