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Re: [MW:21665] Query Regarding Heat Treatment of Test Specimen ucs-85

By Materials & Welding
In your case, dish end shall be simulated for one normalising cycle as this heat treatment is above the upper critical temperature (AC3).

ASME Sec VIII - Div I, UCS-85  (f) Materials conforming to one of the specifications listed in P.No. 1 Group Nos. 1 and 2 of QW 422 and all carbon and low alloy steels used in the annealed condition as permitted by the material specification are exempt from the requirements of (c) when the heat treatment during fabrication is limited to post weld heat treatment at temperatures below the lower transformation temperature of the steel. This exemption does not apply to SA-841.

Few useful interpretation.

Interpretation: VIII-1-10-43
Subject: UCS-85, PWHT of Mechanical Test Coupons (2010 Edition)
Date Issued: September 22, 2011
File: 11-937
Question: A pressure vessel shell made of P-No. 1, Group 2 carbon steel that has been normalized by the mill is used to construct a welded pressure vessel subjected to postweld heat treatment in compliance with the rules of UCS-56 during fabrication. Are the additional requirements for mechanical property testing prescribed by UG-85 and UCS-85 applicable to this material?
Reply: No. See UCS-85(f).

Interpretation: VIII-1-13-04
Subject: UCS-85(f) and UG-84(f)(2), PWHT Exemption (2010 Edition, 2011 Addenda)
Date Issued: December 18, 2012
File: 11-83
Question: In UG-84(f)(2), does the reference to UCS-85 and the included provisions of UCS-85(f) allow the weld metal and HAZ impact test specimen sets removed from the weld test coupon to be impact tested without applying simulated heat treatments representing PWHT below the lower critical temperature?
Reply: No.


Regds/Jignesh


On Monday, 18 August 2014 18:38:13 UTC+5:30, George Dilintas wrote:

Yes

 

Best regards
Dr Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
HBS Regional Technical Manager

  From: shaikh ahmed [ahmedmech77@gmail.com]
  Sent: 08/18/2014 12:47 PM ZE5B
  To: materials-welding@googlegroups.com; Karthik <karthik6684@yahoo.com>; George Dilintas
  Subject: [MW:21651] Query Regarding Heat Treatment of Test Specimen ucs-85


Dear Sir,
 
Kindly Suggest.
 
if plate is normalized SA-516-70,dish head 2.1 is cold formed and then head is normalized due to extreme fiber elongation. do we need test secimens be tested to satisfy UCS-85?
 
waiting.
 
kind regds,
Shaikh Ahmed

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