ДСТУ EN 10217-7:2022 Трубы стальные сварные для работы под давлением. Технические условия снабжения. Часть 7. Трубы из нержавеющих сталей (EN 10217-7:2021, IDT)
ДСТУ EN 10217-7:2022
(EN 10217-7:2021, IDT)
Труби сталеві зварні для роботи під тиском. Технічні умови постачання. Частина 7. Труби з нержавких сталей
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)
Contents
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Classification and designation
5.1 Classification
5.2 Designation
6 Information to be supplied by the purchaser
6.1 Mandatory information
6.2 Options
6.3 Examples of an order
6.3.1 Example 1
6.3.2 Example 2
7 Manufacturing process
7.1 Steelmaking process
7.2 Tube manufacture and conditions
8 Requirements
8.1 General
8.2 Chemical composition
8.2.1 Cast analysis
8.2.2 Product analysis
8.3 Mechanical properties
8.3.1 At room temperature
8.3.2 At elevated temperature
8.3.3 At low temperature
8.4 Corrosion resistance
8.5 Appearance and internal soundness
8.5.1 Appearance
8.5.2 Internal soundness
8.6 Straightness
8.7 Preparation of ends
8.8 Dimensions, masses and tolerances
8.8.1 Outside diameter and wall thickness
8.8.2 Mass
8.8.3 Lengths
8.8.4 Tolerances
9 Inspection
9.1 Type of inspection
9.2 Inspection documents
9.2.1 Types of inspection documents
9.2.2 Content of inspection documents
9.3 Summary of inspection and verification testing
10 Sampling
10.1 Test unit
10.2 Preparation of samples and test pieces
10.2.1 Selection and preparation of samples for product analysis
10.2.2 Location, orientation and preparation of samples and test pieces for mechanical tests
11 Verification test methods
11.1 Chemical analysis
11.2 Tensile test on the base material
11.2.1 At room temperature
11.2.2 At elevated temperature
11.3 Transverse tensile test on the weld
11.4 Technological tests
11.4.1 General
11.4.2 Flattening test
11.4.3 Ring tensile test
11.4.4 Drift expanding test
11.4.5 Ring expanding test
11.5 Weld bend test
11.6 Impact test
11.7 Intergranular corrosion test
11.8 Leak tightness test
11.8.1 Hydrostatic test
11.8.2 Eddy current test
11.9 Dimensional inspection
11.10 Visual examination
11.11 Non-destructive testing
11.12 Material identification
11.13 Retests, sorting and reprocessing
12 Marking
12.1 Marking to be applied
12.2 Additional marking
13 Handling and packaging
Annex A (informative) Technical changes from the previous edition
A.1 Introduction
A.2 Technical changes
Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of Directive 2014/68/EU aimed to be covered
Bibliography
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