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BS EN 10217-6:2019:2021 Edition

BS EN 10217-6:2019:2021 Edition

$167.15

Welded steel tubes for pressure purposes. Technical delivery conditions – Submerged arc welded non-alloy steel tubes with specified low temperature properties

Published By Publication Date Number of Pages
BSI 2021 44
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This document specifies the technical delivery conditions for two test categories of submerged arc longitudinally (SAWL) or helically (SAWH) welded tubes of circular cross section, with specified low temperature properties, made from non-alloy quality steel. NOTE 1 These tube grades are intended to support the essential requirements of EU Directive 2014/68/EU in respect of pressure equipment with specified low temperature properties (see Table 5), covered under all relevant Categories as set out in Article 13 of that Directive. NOTE 2 Once this standard is published in the Official Journal of the European Union (OJEU), presumption of conformity to the Essential Safety Requirements (ESR) of Directive 2014/68/EU is limited to the technical data for the materials in this standard and does not presume adequacy of the material for a specific item of pressure equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive are satisfied, needs to be done by the designer or manufacturer of the pressure equipment, taking also into account the subsequent manufacturing processes which may affect properties of the base materials.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
2 Normative references
10 3 Terms and definitions
11 4 Symbols
5 Classification and designation
5.1 Classification
5.2 Designation
6 Information to be supplied by the purchaser
6.1 Mandatory information
12 6.2 Options
6.3 Example of an order
7 Manufacturing process
7.1 Steelmaking process
13 7.2 Tube manufacture and delivery conditions
14 7.3 Non Destructive Testing Personnel Requirements
8 Requirements
8.1 General
15 8.2 Chemical composition
8.2.1 Cast analysis
8.2.2 Product analysis
16 8.3 Mechanical properties
17 8.4 Appearance and internal soundness
8.4.1 Weld seam
8.4.2 Tube surface
18 8.4.3 Internal soundness
8.4.3.1 Leak tightness
8.4.3.2 Non-Destructive Testing
8.5 Straightness
8.6 Preparation of ends
19 8.7 Dimensions, masses and tolerances
8.7.1 Diameter and wall thickness
8.7.2 Mass
8.7.3 Lengths
8.7.4 Tolerances
8.7.4.1 Tolerances on diameter and thickness
21 8.7.4.2 Height of the weld seam
8.7.4.3 Radial offset of plate or strip edges at the weld
22 8.7.4.4 Misalignment of the weld seam
8.7.4.5 Tolerances on exact length
8.7.4.6 Out of roundness
23 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
24 9.3 Summary of inspection and verification testing
26 10 Sampling
10.1 Frequency of tests
10.1.1 Test unit
10.1.2 Number of sample tubes per 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
10.2.2.1 General
10.2.2.2 Test pieces for tensile tests on the tube body
10.2.2.3 Test pieces for tensile tests on the weld
27 10.2.2.4 Test pieces for weld bend test
10.2.2.5 Test pieces for impact tests on the tube body
10.2.2.6 Test pieces for impact tests on the weld
28 11 Verification of test methods
11.1 Chemical analysis
11.2 Tensile test on the tube body
11.3 Transverse tensile test on the weld
11.4 Weld bend test
11.5 Impact test
29 11.6 Hydrostatic leak tightness test
11.7 Dimensional inspection
30 11.8 Visual examination
11.9 Non-Destructive Testing
11.9.1 Non-Destructive Testing of the weld seam
11.9.2 Non-Destructive Testing for the detection of laminations for tubes of test category 2
31 11.9.3 Supply of strip end welds in SAWH tubes
11.10 Retests, sorting and reprocessing
12 Marking
12.1 Marking to be applied
12.2 Additional marking
13 Protection
32 Annex A (normative)Qualification of welding procedure
A.1 General
A.2 Welding procedure specification
A.2.1 General
A.2.2 Parent metal
Steel name or number
A.2.2.2 Tube dimensions
A.2.3 Weld preparation
A.2.4 Filler wires and fluxes
33 A.2.5 Electrical parameters
A.2.6 Mechanical parameters
A.2.7 Heat input (kJ/mm)
A.2.8 Preheat temperature
A.2.9 Interpass temperature
A.2.10 Postweld heat treatment
A.2.11 Example of welding procedure specification form
34 A.3 Preparation of sample tube and sample assessment
A.3.1 Sample tube
A.3.2 Sample assessment
A.4 Inspection and testing of the weld
35 A.5 Weld test pieces
A.5.1 Weld bend test pieces
A.5.2 Macro-examination
A.5.3 Transverse weld tensile test
A.5.4 Weld impact test
A.6 Test methods
A.6.1 Visual examination
A.6.2 NDT test
A.6.3 Weld bend test
A.6.4 Macro-examination
A.6.5 Transverse weld tensile test
36 A.6.6 Weld impact test
A.7 Test acceptance levels
A.7.1 Visual examination
A.7.2 NDT test
A.7.3 Weld bend test
A.7.4 Macro-examination
A.7.5 Transverse weld tensile test
A.7.6 Weld impact test
A.7.7 Example of test result document
38 A.8 Range of use of qualified procedures
A.8.1 Materials groups
A.8.2 Materials thickness
A.8.3 Filler wire classification
A.8.4 Welding flux
A.8.5 Other parameters
A.9 Qualification record
39 Annex B (informative)Technical changes from the previous edition
B.1 Introduction
B.2 Technical changes
41 Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of 2014/68/EU

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BS EN 10217-6:2019
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