Really?
Where? Please give Section IX citation.
At any rate, Section IX only gives qualification requirements for procedures and performance. It does not state PWHT requirements. PWHT requirements are given in the “book” Sections of the Code (e.g., Sc I, Sc VIII, B31.1). While most will allow extended time at lower temperature for carbon steel, I know of not a single Code that permits soak time to not meet the minimum.
You can dance around this issue for ever. If the Jurisdiction (local government) makes the Code Law or your contract makes the Code the bases for construction/design compliance, you are not meeting the requirements. Further, you should not be able to obtain registration with NBIC, if required. If the requirement is purely contractual, then the customer could, on the basis of additional testing, give you a waiver of compliance. However, they better make sure that their insurance company will accept it which I doubt they would.
John A. Henning
Welding & Materials
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sachin sankhe
Sent: Tuesday, August 07, 2012 12:35 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:15039] 14919] Stress relieving Rejected for 5 min less soaking time.
Hi Friends
ASME SEC IX gives relaxation on soaking time i.e atleast 80% of that required on production joint
Regards
Sachin.Sankhe
From: "pgoswami" <pgoswami@quickclic.net>
Sent: Wed, 25 Jul 2012 17:44:39
To: <materials-welding@googlegroups.com>
Subject: Re: [MW:14949] 14919] Stress relieving Rejected for 5 min less soaking time.
Harish/Mohd,
I am not trying to act as moderator.
Looking at the problem, a separate simulation may be as time consuming as the original HT. Code is a law, with engineering judgments. Hence the inspector has the rights to declare that the original HT was inadequate. The simplest solution what looks to me is to perform additional SR for 15-20 mins and satisfy code requirements.
PWHT time is all cumulative , and there no restriction form ASME code.
Thanks.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Harish Kannepalli
Sent: Monday, July 23, 2012 11:58 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:14942] RE: 14919] Stress relieving Rejected for 5 min less soaking time.
You can propose the following to your client:
Perform Simulation on separate coupon, check the mechanical & metallurgical properties. If they meet the code requirements, it may be acceptable. After all, code is made by humans for humans.
2012/7/23 John Henning <jhenning@deltak.com>
Most common materials require 1 hour/25mm or 60minutes/25mm and I assume you are working with one of these materials. Then, for a 40mm thick material the required minimum soak time is (40mm)*(60min.)/(25mm) = 96 minutes
You don’t meet Code required minimum soak time. Your soak time must exceed the minimum time. Therefore, your pipe weld is unacceptable. No discussion – it is clearly unacceptable in its present condition.
John A. Henning
Welding & Materials
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of mohd
Sent: Saturday, July 21, 2012 1:52 AM
To: materials-welding@googlegroups.com
Subject: [MW:14919] Stress relieving Rejected for 5 min less soaking time.
Dear expert,
As per ASME 8-1-UCS-56
We have done SR for our 40mm thk-30" pipe joint.
but unfortunetly, soaking time was just short by 5min.Now our client/PMC both are not agree to release.
Required time : 1hr.15min
Actual Time : 1hr.10min
It is acceptable OR could you share any technical view to convince client?
regards,
mohd.
--
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.
______________________________________________________________________
The information in this email is confidential, and is intended solely for the addressee(s). If you are not the intended recipient of this email please let us know by reply and then delete it from your system; you should not copy this message or disclose its contents to anyone. The internet can not guarantee the integrity of this message. HAMON (and its subsidiaries) shall (will) not therefore be liable for the message if modified.
______________________________________________________________________
--
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.
--
regards,
Harish.
--
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.
--
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.
Follow Rediff Deal ho jaye! to get exciting offers in your city everyday. |
--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
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.
______________________________________________________________________
The information in this email is confidential, and is intended solely for the addressee(s). If you are not the intended recipient of this email please let us know by reply and then delete it from your system; you should not copy this message or disclose its contents to anyone. The internet can not guarantee the integrity of this message. HAMON (and its subsidiaries) shall (will) not therefore be liable for the message if modified.
______________________________________________________________________
No comments:
Post a Comment