BS EN 10225-1:2019
$198.66
Weldable structural steels for fixed offshore structures. Technical delivery conditions – Plates
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 66 |
This document specifies requirements for weldable structural steels, in the form of plates, to be used in the fabrication of fixed offshore structures. The following thickness limitations are given in this standard: – S355NLO up to and including 200 mm; – S355MLO, S420MLO, S460MLO, S500MLO up to and including 120 mm; – S420QLO, S460QLO, S500QLO, S550QLO, S620QLO, S690QLO up to and including 150 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, including plate for structural hollow sections (see EN 10225-4). It does not apply to plates 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 F on the prequalification of steels for fixed offshore structures in arctic areas. Minimum yield strengths up to 690 MPa are specified together with impact properties at temperatures down to -40 °C.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 8 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions |
| 11 | 4 Classification and designation |
| 12 | 5 Information to be supplied by the purchaser |
| 13 | 6 Manufacturing process |
| 14 | 7 Requirements |
| 17 | 8 Inspection |
| 18 | 9 Frequency of testing and preparation of samples and test pieces |
| 20 | 10 Test methods |
| 22 | 11 Marking – Die stamping and paint marking 12 Options |
| 37 | Annex A (normative when Option 1 is specified by the purchaser)Further details of steel manufacturing procedures to be supplied by the manufacturer |
| 38 | 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 |
| 39 | B.3 Butt-weld requirements B.3.1 General |
| 40 | B.3.2 Test piece dimensions B.3.3 Bevel detail |
| 41 | B.3.4 Welding processes B.3.5 Nominal heat input B.3.6 Heat treatment B.3.6.1 S355NLO, S355MLO, S420MLO, S460MLO and S500MLO grades B.3.6.2 S420QLO, S460QLO, S500QLO, S550QLO, S620QLO and S690QLO grades |
| 42 | B.3.7 Dehydrogenation of test pieces B.4 Mechanical testing B.4.1 General |
| 43 | B.4.2 Charpy-V-notch impact tests |
| 44 | 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 |
| 45 | B.4.3.4 Sectioning methods B.4.4 Macrohardness |
| 46 | B.4.5 Cross-weld tensile test |
| 51 | 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 |
| 52 | C.5 Specific test requirements: Macrosection and hardness tests |
| 54 | 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 |
| 55 | D.4 Evaluation of the test welds D.5 Hardness testing |
| 61 | Annex E (normative when Option 15 is specified by the purchaser)Cold forming characteristics for steel plates |
| 62 | Annex F (informative)Prequalification of steels for offshore structures operating in arctic areas |
| 63 | Annex G (informative)List of options of EN 10225-1 to -4 |
