Mid Month Bulletin_79

Fitness for Service

The purpose of this Bulletin_79 is to give References to Resources on Fitness for Service.

Mid Month Bulletin No.79
15 November 2012

Bulletin_79 - , Inspection, Integrity Investigation, Evaluation, Assessment, European FITNET Procedures, Experience, Practices for Service and Repair, Training Courses, Examples, Advanced Stress Analysis, Aging Equipment Evaluation, Optimizing repair welding and much more...

Mid November Bulletin

15 November 2012 - Resources on Fitness for Service - Bulletin 79

How Long will it Still be Fit?


How can one determine whether an aging structural component is still fit for continuing service?

A multiple approach was developed, along years of experience, to investigate operating equipment.

A typical assessment may involve several engineering disciplines, and it requires data from a number of sources.

The purpose is to find in time telltale hints pointing to weak points likely to grow into failures.

The structures most exposed to this kind of aging, in the sense of growing old, are those subjected to time dependent mechanical properties.

First in importance is the Creep property, expressed as continued deformation depending on stress at given high temperatures.

Equipment designed to operate at elevated temperatures, like power generating equipment, is by definition in need of periodic monitoring.

Fatigue is described as a crack growing under repeated stress.

Also fatigue cracks, combined or not with creep deformations, must be monitored closely, in order to be repaired before failure.

A short note on this subject was published (6) in Issue 11 of Practical Welding Letter for July 2004. Click on PWL#011 to read it. Other notes can be found in other PWL issues by performing a Search from any page of our Website.

Some of the published online resources referred here in this Bulletin_79, can be downloaded at no cost. To benefit from the information there are no shortcuts: one should dedicate to learning the necessary time.

The references published in this Bulletin_79 are selected to provide useful knowledge to our readers.

Some of the sources are commercial companies, presenting their services or goods together with technical advice. No endorsement or recommendations of such offers is intended. Readers should check if such information meets their purposes and needs.

The addresses reported hereafter in Bulletin_79 were live and correct at the time of their publication. There is no guarantee that they will always be so, because they are administered by the sources themselves and are under their control.

Note: References in Bulletin_79 to articles or other documents are given here in one of two forms. If the links are "live" (usually underlined or otherwise highlighted) they are operated with a click of the mouse.

If they are URL's (Uniform Resource Locator), which is the analogue of an address, they begin with "http://..." or "www.". These are not live and must be copied and pasted entirely into the browser (after having selected them with the mouse or otherwise). If they are long they may be displayed in two or more lines. In that case one has to care that the URL be copied completely in a single line without any space, and Enter.

If the information of Bulletin_79 is important to you, you may save the selected pages in a suitable folder on your Computer for easy reference. You are welcome to forward this Bulletin_79 page to those of your friends who may profit of this information.


Recent Advances in Fitness-for-Service Assessment (12 pages)

Fitness-for-Service Assessment of Welded Structures (9 pages)
From ASM Handbook Vol. 6 - Document Download
Price $30.00 - Member Price $24.00

Pressure Vessel Inspection Code:
In-Service Inspection, Rating, Repair, and Alteration

Edition: 9th
American Petroleum Institute / 01-Jun-2006 / 56 pages
Click to Order.

API 570
Piping Inspection Code:
In-service Inspection, Repair, and Alteration of Piping Systems

Edition: 3rd
American Petroleum Institute / 01-Nov-2009 / 65 pages
Click to Order.

API 579-1 / ASME FFS-1
Edition: 2nd
American Petroleum Institute / 05-Jun-2007 / 1128 pages
Click to Order.

API Std 653
Tank Inspection, Repair, Alteration, and Reconstruction
Includes Addendum 1 (2010), Addendum 2 (2012)
Edition: 4th
American Petroleum Institute / 01-Apr-2009 / 152 pages
Click to Order.

API 579-1/ASME FFS-1
Fitness-For-Service Standard
(Presentation - 20 slides)
[Click on "april182007ffspresentation" from Spring 2007:]

An Advanced Approach to Fitness-For-Service (FFS) and Corrosion Growth Assessment to Ensure
Effective Pipeline Integrity Management
( Presentation - 43 frames)

What is The Pressure Vessel Research Council?

Fitness For Service

Overview of the European FITNET fitness-for-service procedure

Which procedures for fitness-for-service assessment: API 579 or BS 7910?

Welding and Fitness-For-Service of Weldolet® Fittings

Fitness for Service Assessment

FITNET fitness-for-service thematic network

Fitness for Service Evaluation

Fitness for Service

Fitness-For-Service (FFS) (Training Course)

Fitness-For-Service (Consulting)

Fracture Mechanics and Fitness-for-Service Software

Fitness for Service

PD395 - API 579-1/ASME FFS-1- Fitness-for Service
(Training & Development 3 Days Course)

Experiences With Controlled Deposition Welding
and Fitness for Service in Coke Drums

(Paper Abstract)

Fitness for Service

Fit for service


Fitness for Service Examples

Advanced Stress Analysis
- Comprehensive Analysis for New Equipment Design


Fitness-for-Service Evaluation of Bulkheads

Current Practices in Pipeline Fitness for Service and Repair (Presentation - 28 frames)

Valdez Marine Terminal Storage - Storage Tank Mechanical Integrity Investigation (45 pages)

Evaluation of Aging Equipment for Continued Service (23 pages)

Inspection service helps ensure welds are fit for purpose

Optimizing repair welding in oil refineries

Hydrotesting not required under API-653 procedure (4 pages)


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