BS 8701:2016
Current
The latest, up-to-date edition.
Full ring ovalization test for determining the susceptibility to cracking of linepipe steels in sour service. Test method
Hardcopy , PDF
English
30-06-2016
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Samples
8 Surface preparation
9 Procedure for test specimens with internal loading
10 Expression of results
Annexes
Annex A (normative) - Ultrasonic examination of pipe,
plate and welds during accelerated laboratory
tests
Annex B (normative) - Ring loading
Annex C (informative) - Typical internal and external
load application rigs for use in the full ring test
Annex D (normative) - Chemistry of test solutions
Annex E (informative) - Analysis of test solution - iodimetric
titration procedure
Annex F (informative) - Illustrated summary of the
full ring test procedure
Annex G (informative) - Hydrogen sulfide (H[2]s)
health and safety considerations
Annex H (informative) - Sample identification and
test record, Form 1
Annex I (informative) - Sample identification and
test record, Form 2
Annex J (informative) - Acceptance criteria
Annex K (informative) - Sulfide stress corrosion
(SSC) and hydrogen induced cracking (HIC)
Annex L (informative) - Explanatory notes on test
method: Galvanic Coupling
Annex M (informative) - Modified test procedure
for externally loaded test
specimens (Diameter <12 in. [305 mm])
Annex N (informative) - Magnetic particular inspection
(MPI) procedure
Bibliography
Provides a method for determining the susceptibility to cracking of steel pipes in sour service.
Committee |
PSE/17
|
DevelopmentNote |
Supersedes 16/30319903 DC. (07/2016)
|
DocumentType |
Standard
|
Pages |
56
|
PublisherName |
British Standards Institution
|
Status |
Current
|
Supersedes |
This British Standard gives a method for determining the susceptibility to cracking of steel pipes in sour service.
This British Standard utilizes a tubular specimen comprising a full circumferential ring. The test method applies to any pipe with or without seam (longitudinal or spiral) or girth weld (with or without filler).
NOTE1 The specimen is usually a pipe but can also consist of flange neck or section of a bend, or other tubular component or a combination of the above.
This British Standard provides guidance on determination of specimen size to ensure it retains residual stresses from manufacture and welding.
NOTE2 See Clause7 for specimen sizes.
The method utilizes ovalization to simulate hoop stress, using mechanical loading on a tubular form. The specimen is subjected to single sided exposure to the sour test environment.
NOTE3 The test also allows measurement of hydrogen permeation rates which can provide useful information, such as highlighting the effects of galvanic coupling between materials of apparent compatibility.
BS EN ISO 17640:2010 | Non-destructive testing of welds. Ultrasonic testing. Techniques, testing levels, and assessment |
BS EN ISO 9001:2015 | Quality management systems. Requirements |
NACE TM 01 77 : 2016 | LABORATORY TESTING OF METALS FOR RESISTANCE TO SULFIDE STRESS CRACKING AND STRESS CORROSION CRACKING IN H[2]S ENVIRONMENTS |
BS EN ISO 2400:2012 | Non-destructive testing. Ultrasonic testing. Specification for calibration block No. 1 |
BS EN ISO 16811:2014 | Non-destructive testing. Ultrasonic testing. Sensitivity and range setting |
BS EN ISO 8044:2015 | Corrosion of metals and alloys. Basic terms and definitions |
BS EN ISO 11666:2010 | Non-destructive testing of welds. Ultrasonic testing. Acceptance levels |
BS EN ISO 9712:2012 | Non-destructive testing. Qualification and certification of NDT personnel |
BS EN ISO 15156-3:2015 | Petroleum and natural gas industries. Materials for use in H2S-containing environments in oil and gas production Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys |
BS EN ISO 16810:2014 | Non-destructive testing. Ultrasonic testing. General principles |
BS EN ISO 9002:1994 | Quality systems. Model for quality assurance in production, installation and servicing |
BS EN ISO 7963:2010 | Non-destructive testing. Ultrasonic testing. Specification for calibration block No. 2 |
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