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BS EN 13445-4:2021+A1:2023

BS EN 13445-4:2021+A1:2023

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Unfired pressure vessels – Fabrication

Published By Publication Date Number of Pages
BSI 2023 80
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This document specifies requirements for the manufacture of unfired pressure vessels and their parts, made of steels, including their connections to non-pressure parts. It specifies requirements for material traceability, manufacturing tolerances, welding requirements, requirements for permanent joints other than welding, production tests, forming requirements, heat treatment, repairs and finishing operations.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
2 Normative references
12 3 Terms and definitions
4 Requirements for manufacturing and subcontracting
13 5 Materials
15 6 Manufacturing tolerances
24 7 Weld details
8 Welding
29 9 Manufacture and testing of welds — Production test
38 10 Forming of pressure parts
43 10.3.2.1 General
10.3.2.2 Normalised steels with specified impact values at temperatures above and including –20 (C
44 10.3.2.3 Normalised steels with specified impact values at temperatures below – 20 (C
10.3.2.4 Quenched and tempered steels
10.3.2.5 Austenitic and austenitic-ferritic steels
10.3.2.6 Clad steels
51 11 Post weld heat treatment (PWHT)
60 12 Repairs
61 13 Finishing operations
63 Annex A (informative)Structural tolerances
67 Annex B (informative)Example of a sub-contractors form
68 Annex C (normative)Specification and approval of expansion procedures and operators
C.1 General
C.1.1 Introduction
C.1.2 Responsibility
C.1.3 Specification of expansion procedures
69 C.1.4 Technical content of expansion procedure specification (EPS)
70 C.1.5 Expansion procedure qualification test (EPQT)
C.2 Examination and testing
C.2.1 General
C.2.2 Visual examination
C.2.3 Dimensional verification
71 C.2.4 Testing
C.3 Range of approval
C.3.1 General
C.3.2 Manufacturer
C.3.3 Material
72 C.3.4 Tube dimensions
C.3.5 Expansion factor
C.3.6 Joint design
C.3.7 Tool
C.3.8 PWHT
73 C.4 Expansion Procedure Approval Record (EPAR)
C.5 Expansion operator approval
C.5.1 General
C.5.2 Validity range of expansion operator qualification
C.5.3 Qualification tests
C.5.3.1 General
C.5.3.2 Test piece
C.5.3.3 Assessment of the test piece
74 C.5.4 Examination and testing
C.5.5 Period of validity
C.5.5.1 Initial approval
C.5.5.2 Prolongation
C.5.6 Certification
75 Annex Y (informative)History of EN 13445-4
Y.1 Differences between EN 13445-4:2014 and EN 13445-4:2021
76 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2014/68/EU aimed to be covered

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BS EN 13445-4:2021+A1:2023
$215.11