Minimum critical crack depths in pressure vessels—Guidelines for non destructive testing

1984 ◽  
Vol 16 (3) ◽  
pp. 221-242 ◽  
Author(s):  
M.R. Crossley ◽  
C.H.A. Townley
Keyword(s):  
Pressure Vessels ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Critical Crack ◽  
Non Destructive

Non Destructive Testing of Unfired Pressure Vessels

2005 ◽  
Author(s):  
Guy Baylac ◽  
Ian Roberrts ◽  
Erik Zeelenberg
Keyword(s):  
Pressure Vessels ◽  
Non Destructive Testing ◽  
European Standard ◽  
Destructive Testing ◽  
Acceptance Criteria ◽  
Equipment Industry ◽  
Non Destructive

This paper discusses the non destructive testing (NDT) of unfired pressure vessels made of ductile and tough steels, as contained in Part 5 of the European standard EN 13445:2002. The concept and use of testing groups along with “satisfactory experience” in welding are presented. Also the background and rationale for the determination of standards used for NDT methods, characterisation and acceptance criteria are discussed in detail. Benefits for the pressure equipment industry are emphasised.

scholarly journals RADIOGRAPHIC EXAMINATION PROCEDURE AS NON DESTRUCTIVE TESTING METHOD IN PROCESS PIPING

2019 ◽  
pp. 1-9
Keyword(s):  
Pressure Vessels ◽  
Radiographic Examination ◽  
X Rays ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Nondestructive Examination ◽  
Current Test ◽  
Radiographic Testing ◽  
Standard Quality ◽  
Non Destructive

Industry must have good quality for their services or products. One of the things that their have done is how to get the customer’s belief in their brand. Quality in every part has become the main case. Most of the companies in industry use metals as material to support their services. When the goods have been processed, it must continue with the testing. This is to prove that the goods have gone through the formation process fill in standard quality which required by the customer. There are two types of testing known as destructive testing and non-destructive testing. There are some of ways of non destructive testing methods on metals inspection has been applied in testing the quality of goods. Such as visual test, magnetic particle test, liquid penetrant, eddy current test, ultrasonic test, radiographic test in metals testing. Nondestructive testing (NDT) is the process of inspecting, testing, or evaluating materials, components or assemblies for discontinuities, or differences in characteristics without destroying the serviceability of the part or system. Radiographic Testing (RT) is a nondestructive examination technique that involves the use of either x-rays or gamma rays to view the internal structure of a component. In the petrochemical industry, Radiographic Testing is often used to inspect machinery, such as pressure vessels and valves, to detect for flaws. RT is also used to inspect weld repairs. Compared to other NDT techniques, radiography has several advantages. It is highly reproducible, can be used on a variety of materials, and the data gathered can be stored for later analysis.

Creep Amendments in the European Standard EN 13445

2007 ◽  
Author(s):  
Guy Baylac ◽  
Norbert Kiesewetter ◽  
Josef Zeman ◽  
Alain Handtschoewercker ◽  
Rod McFarlane ◽  
...  
Keyword(s):  
Creep Strain ◽  
Damage Accumulation ◽  
Cyclic Fatigue ◽  
Pressure Vessels ◽  
Creep Rupture ◽  
Non Destructive Testing ◽  
European Standard ◽  
Destructive Testing ◽  
Direct Route ◽  
Non Destructive

This paper describes the Creep Amendments which will be implemented in EN 13445, the European Standard for Unfired Pressure Vessels, in 2007. It will address four topics: 1) Specifications for Materials and Weldments. 2) Specifications for Design By Formula and Damage Accumulation rules. 3) Specifications for Design By Analysis — Direct Route (Creep Rupture, Excessive Creep Strain, Creep and cyclic Fatigue Interaction). 4) Specifications for Inspection and Non-Destructive Testing (NDT).

Non-Destructive Testing and Inspection of Unfired Pressure Vessels Subject to Cyclic Loads in EN 13445-5

2005 ◽  
Author(s):  
Guy Baylac ◽  
Ian Roberts ◽  
Stephen Maddox ◽  
Erik Zeelenberg
Keyword(s):  
Fatigue Analysis ◽  
Pressure Vessels ◽  
Cyclic Loads ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Critical Areas ◽  
Non Destructive

This paper deals with non destructive testing (NDT) and inspection of cyclically-loaded unfired pressure vessels designed to EN 13445. It details specific provisions contained in Annex G of EN 13445-5 for shape imperfections and areas identified in the fatigue analysis that can limit the lifetime of the vessel (referred to as fatigue critical areas).

Pressure Vessel Management: A Plant Perspective

2004 ◽  
Author(s):  
Walter S. Almon
Keyword(s):  
Pressure Vessels ◽  
Chemical Plants ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Division 1 ◽  
Asme Code ◽  
Section Viii ◽  
Non Destructive ◽  
Original Edition ◽  
Gas Plants

This paper addresses a methodology to maintain pressure vessels per ASME Section VIII, Division 1 Code and jurisdictional requirements, for new and existing pressure vessels. The pressure vessels discussed are drums, towers, shell & tube heat exchangers, and air-cooled exchangers, all designed and built per ASME Section VIII, Division 1. The methodology applies to vessels in refineries, gas plants, oilfield facilities, and chemical plants. Vessel adequacy is maintained via Codes, non-destructive testing, materials, inspection, company standards, welding procedures, inspection/maintenance standards, and jurisdictional requirements. Unique maintenance software, “PVCalc”, can aid in vessel calculations, to calculate the pressure rating, and remaining life, per the original edition of the Code under which the vessel was built. New vessel designs should be thoroughly reviewed, as the author’s experience over the last eight years is that approximately 65 to 80 percent of all vessel designs contain design errors (mostly minor) per ASME Code.

Electromagnetic and magnetic methods of non-destructive testing for control of damage accumulation in structural steels and alloys (review)

2020 ◽  
Vol 86 (8) ◽  
pp. 49-57
Author(s):  
A. G. Efimov
Keyword(s):  
Eddy Current ◽  
Pressure Vessels ◽  
Structural Steels ◽  
Austenitic Steels ◽  
Practical Implementation ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Magnetic Methods ◽  
The Impact ◽  
Non Destructive

Control of the stress-strain state, compressive and tension stresses, accumulated fatigue damage is one of the goals of non-destructive testing. We consider data of current research in the field of eddy current and electromagnetic methods of non-destructive testing aimed at solving the problem of monitoring the accumulated damage in structural steels and alloys. Developments for practical implementation of the coercive force method, the eddy current structurescopy of non-magnetic materials, the method of higher harmonics and remanence-based control, the method of magnetic noise (Barkhausen noise) are considered. The physical foundations of non-destructive testing methods are considered along with their brief comparative analysis. Examples of non-destructive testing of critical units, such as operating oil and gas pipelines, aircraft parts, bearing parts, pressure vessels, crane parts, etc. are given. The possibility of using the eddy current method for control of the austenitic phase of cold rolled austenitic steels (AISI 304, AISI 321, AISI 316) is analyzed. The examples of static and fatigue tests of the samples of various steels and alloys are given: St3, St20, St45, D16T, AMg6, AMg6N, 12Kh18N9T, 08Kh18N9, 40Kh, R91. Metrology issues and the impact of interfering parameters affecting the measurement error are considered. The equipment used for a number of methods is discussed. Conclusions regarding the limits of applicability and limitations of the considered methods are drawn. The review provides links to both the fundamental works in the field of electromagnetic structurescopy and to modern research in this area which is important for the practical implementation of the devices based on electromagnetic and magnetic methods of non-destructive testing.

Codes Comparison and Analysis of Dissimilar Metal Welds: Ultrasonic Testing in Nuclear Power Plants

2010 ◽  
Author(s):  
Zhimin Zhong ◽  
Goufeng Zhang ◽  
Guanghua Yuan
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Pressure Vessels ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Dissimilar Metal ◽  
The Difference ◽  
Non Destructive ◽  
Performance Demonstration

Dissimilar Metal Welds have been widely used at safe-related pressure vessels and piping in Nuclear Power Plants. Some industry codes have been developed for nuclear power plants, such as ASME BPVC volume III & XI, Germany KTA 3201.3 and 3201.4 code and Russia code of light water nuclear power plants. The difference of those codes and some industry feed backs and some experiment results have been briefly introduced and discussed. Furthermore, the inspection qualification or performance demonstration, one of new requirements of some codes, especially for pre-service and inservice inspection of nuclear power plants, really promote continual improvements of DMWs UT both on detection rate and sizing accuracy. Additional, these works really benefit the revision of EJ/T 1039-1996, Non-destructive testing for mechanical components in nuclear island of nuclear power plants, as china building more and more nuclear power plants.

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