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BS EN ISO 17781:2017 Petroleum, petrochemical and natural gas industries. Test methods for quality control of microstructure of ferritic/austenitic (duplex) stainless steels >
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BS EN ISO 17781:2017 Petroleum, petrochemical and natural gas industries. Test methods for quality control of microstructure of ferritic/austenitic (duplex) stainless steels, 2017
- National foreword
- European foreword
- Endorsement notice
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviated terms
- 3.1 Terms and definitions
- 3.2 Abbreviated terms
- 4 Sampling of test specimens
- 4.1 General
- 4.2 Casting test blocks
- 4.3 Welds in the as welded condition
- 5 Test methods
- 5.1 General
- 5.2 Microstructural examination
- 5.2.1 General
- 5.2.2 Preparation of specimen
- 5.2.3 Etching of specimens
- 5.2.4 Microstructural evaluation of test specimens
- 5.3 Ferrite content measurement
- 5.3.1 Test standard and conditions
- 5.3.2 Acceptance criteria
- 5.3.3 Reporting
- 5.4 Charpy V-notch impact toughness test
- 5.4.1 Test standard and conditions
- 5.4.2 Acceptance criteria
- 5.4.3 Reporting
- 5.5 Corrosion test
- 5.5.1 Test standard and conditions
- 5.5.2 Preparation of test specimens
- 5.5.3 Acceptance criteria
- 5.5.4 Reporting
- Annex A (informative) Chemical compositions of duplex stainless steels
- Annex B (informative) Preparation and etching for microstructural examination
- Bibliography [Go to Page]
