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BS EN 10225-3:2019+A1:2023

BS EN 10225-3:2019+A1:2023

$198.66

Weldable structural steels for fixed offshore structures. Technical delivery conditions – Hot finished hollow sections

Published By Publication Date Number of Pages
BSI 2023 68
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This document specifies requirements for weldable structural steels made of hot finished seamless and high frequency welded hollow sections to be used in the fabrication of fixed offshore structures. The following thickness limitations are given in this standard: – for seamless hollow sections up to and including 65 mm; – for HFW hollow sections up to and including 25,4 mm. Greater thicknesses can be agreed, provided the technical requirements of this European Standard are maintained. This European Standard is applicable to steels for offshore structures, designed to operate in the offshore sector but not to steels supplied for the fabrication of subsea pipelines, risers, process equipment, process piping and other utilities. It is primarily applicable to the North Sea Sector, but may also be applicable in other areas provided that due consideration is given to local conditions e.g. design temperature. NOTE This document has an informative Annex E on the prequalification of steels for fixed offshore structures in arctic areas. Minimum yield strengths up to 770 MPa are specified together with impact properties at temperatures down to -40 °C.

PDF Catalog

PDF Pages PDF Title
2 undefined
11 1 Scope
2 Normative references
13 3 Terms and definitions
15 4 Classification and designation
16 5 Information to be supplied by the purchaser
17 6 Manufacturing process
7 Requirements
21 8 Inspection
22 9 Frequency of testing and preparation of samples and test pieces
25 10 Test methods
27 11 Marking and bundling
28 12 Options
41 Annex A (normative when Option 1 is specified by the purchaser)Further details of steel manufacturing procedures to be supplied by the manufacturer
42 Annex B (normative when Option 17 is specified by the purchaser)Weldability testing and mechanical testing of butt welds
B.1 General requirements
B.2 Welding processes and procedure
43 B.3 Butt-weld requirements
B.3.1 General
B.3.2 Test piece dimensions
44 B.3.3 Bevel detail
B.3.4 Welding processes
B.3.5 Nominal heat input
45 B.3.6 Heat treatment
B.3.6.1 S355NHHO, S355NLHHO, !S420NLHHO and S460NLHHO” grades
B.3.6.2 S420QLHHO, S460QLHHO, S500QLHHO, S620QLHHO, S690QLHHO and 770QLHHO grades
B.3.7 Dehydrogenation of test pieces
46 B.4 Mechanical testing
B.4.1 General
47 B.4.2 Charpy V-notch impact tests
48 B.4.3 Fracture mechanic test
B.4.3.1 General
B.4.3.2 Classification of HAZ structures
B.4.3.3 Test requirements
49 B.4.3.4 Sectioning methods
B.4.4 Macrohardness
50 B.4.5 Cross-weld tensile test
55 Annex C (normative when Option 17 is specified by the purchaser)Weldability testing – Bead-on-plate
C.1 General
C.2 Test material dimension
C.3 Welding method
C.4 Test condition
56 C.5 Specific test requirements: macrosection and hardness tests
58 Annex D (normative when Option 17 is specified by the purchaser)Weldability testing – Controlled thermal severity tests (CTS)
D.1 General
D.2 Test block dimensions
D.3 General welding details
D.3.1 Anchor welds
D.3.2 Test welds
59 D.4 Evaluation of the test welds
D.5 Hardness testing
65 Annex E (informative)Prequalification of steels for offshore structures operating in arctic areas

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BS EN 10225-3:2019+A1:2023
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