Search
Filters
Close

Get BIG discounts on selected titles from NACE and SSPC.  Shop Now

Weld Jointing Influence on Boiler Tube Sheet Integrity

Boiler system is one of the most critical systems for a utility plant. A utility plant had experienced high percentages of boiler downtime owing to boiler tube sheet cracking failures. Investigations carried out revealed high stress at the tube-to-tube sheet joint in the boiler fire-side entrance. Tube-to-tube sheet joints at the boiler fire-side entrance had been fabricated by strength welding and without any expansion. The strength welded joint had created undue stress leading to cracking of the weld joint by thermal expansion. A higher quality expanded joint consisting of expanding, flaring and seal welding the fire-side entrance was implemented during the re-tube process. The utility plant has now zero downtime due to boiler tube failure. This article summarizes the description and history of failures with the boiler at the utility plant; investigations and corrective actions carried out; and the present improved condition of the boilers.

Product Number: MPWT19-14366
Author: Sameer Ayyar, Mahmood Al-Ridy, Farhat Choudhary, Adi Alammari, Itoro Akrasi
Publication Date: 2019
$0.00
$0.00
$0.00
Also Purchased
Picture for 08436 Boiler Tube Failures and Integrity Assessment
Available for download

08436 Boiler Tube Failures and Integrity Assessment

Product Number: 51300-08436-SG
ISBN: 08436 2008 CP
Author: Mohamed A. Saleem and Abdulwahab Hulaibi
Publication Date: 2008
$20.00
Picture for 96544 SOME COMMON CORROSION MECHANISMS LEADING
Available for download

96544 SOME COMMON CORROSION MECHANISMS LEADING TO BOILER TUBE FAILURE

Product Number: 51300-96544-SG
ISBN: 96544 1996 CP
Author: D. I. Bain, J. D. Haff, J. A. Kelly
$20.00