BS EN 10225:2009 - Weldable structural steels for fixed offshore structures. Technical delivery conditions – BSI British Standards

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BS EN 10225:2009

Weldable structural steels for fixed offshore structures. Technical delivery conditions

Status : Current   Published : July 2009

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BS EN 10225:2009 Weldable structural steels for fixed offshore structures. Technical delivery conditions

BS EN 10225 specifies requirements for weldable structural steels to be used in the fabrication of fixed offshore structures in the form of plates up to and including 150 mm thick. It also specifies sections up to 63 mm thick except for sections delivered in the as-rolled condition which are permitted up to 25 mm thick only. Seamless hollow sections up to and including 40 mm thick and high frequency electric resistance welded hollow sections up to and including 20 mm thick are specified. Greater thicknesses for sections and hollow sections may be agreed, provided the technical requirements of BS EN 10225 are maintained.

For plates the thickness limitations are:
S355G2+N, S355G5+M, - up to and including 20 mm
S355G3+N, S355G6+M - up to and including 40 mm
S355G7+N, S355G8+N, S355G9+N, S355G10+N - up to and including 150 mm
S355G7+M, S355G8+M, S355G9+M, S355G10+M - up to and including 100 mm
S420G1+QT, S420G1+M, S420G2+QT, S420G2+M - up to and including 100 mm
S460G1+QT, S460G1+M, S460G2+QT, S460G2+M - up to and including 100 mm

BS EN 10225 applies 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. temperature.

In the case of hollow sections formed from plate with the seam fusion welded, BS EN 10225 covers only the requirements of the plate material.

Minimum yield strengths up to 460 MPa are specified together with low temperature impact properties at temperatures down to –40 °C.

BS EN 10225 applies to material supplied ex-mill or from merchant's stock.

Contents of BS EN 10225:

  • Foreword
  • Scope
  • Normative references
  • Terms and definitions
  • Information to be supplied by the purchaser
  • General
  • Options
  • Dimensions, mass and tolerances
  • Dimensions and tolerances
  • Mass of steel
  • Classification and designation
  • Classification
  • Designation
  • Manufacturing process
  • Steel manufacturing process
  • Thickness limits and segregation control
  • Delivery condition
  • Requirements
  • General
  • Chemical composition
  • Mechanical properties
  • Technological properties
  • Surface condition and internal defects
  • Inspection and testing
  • General
  • Ex-mill supply
  • Merchant supply
  • Identification of cast
  • Delivery
  • Sampling
  • General
  • Frequency of testing
  • Preparation of samples and test pieces
  • Verification of chemical composition
  • Test methods
  • Chemical analysis
  • Mechanical tests
  • Non-destructive tests
  • Re-tests and re-submission for testing
  • Marking, bundling and protective coating
  • Die stamp and paint marking
  • Bundling
  • Colour coding
  • Protective coating options
  • Location of test samples for tensile and impact tests
  • Location of tensile test piece when two rolled surfaces cannot be retained
  • Details of manufacturing procedures to be supplied by the manufacturer for steels of groups 2 and 3
  • Cold forming characteristics for steel plate of groups 2 and 3
  • Weldability testing for steels of groups 2 and 3 and mechanical testing of butt welds
  • Weldability testing for steels of groups 2 and 3 - Bead-on-plate
  • Weldability testing for steels of groups 2 and 3 - Controlled thermal severity
  • tests (CTS)
  • Bibliography



Standard NumberBS EN 10225:2009
TitleWeldable structural steels for fixed offshore structures. Technical delivery conditions
StatusCurrent
Publication Date31 July 2009
Cross ReferencesEN 473, EN 571-1, EN 895, EN 1011-1, EN 10002-1, EN 10020:2000, EN 10021:2006, EN 10024, EN 10025-1, EN 10025-3, EN 10025-4, EN 10025-6, EN 10027-1, EN 10027-2, EN 10029, EN 10034, EN 10045-1, EN 10052:1993, EN 10055, EN 10056-2, EN 10067, EN 10079:2007, EN 10160, EN 10163-2, EN 10163-3, EN 10164, EN 10204, EN 10210-1, EN 10210-2, EN 10246-3, EN 10246-5, EN 10246-7, EN 10246-8, EN 10246-12, EN 10246-14, EN 10246-15, EN 10256, EN 10279, EN 10306, EN ISO 2566-1, ISO 2566-1:1984, EN ISO 4063, ISO 4063:1998, EN ISO 6507-1, ISO 6507-1:2005, EN ISO 6947, ISO 6947:1993, EN ISO 8492, ISO 8492:1998, EN ISO 9934-1, ISO 9934-1:2001, EN ISO 12737, ISO 12737:2005, EN ISO 14284:2002, ISO 14284:1996, EN ISO 15614-1, ISO 15614-1:2004, ISO 15614-1:2004/AMD 1:2008, BS 7363
ReplacesBS EN 10225:2001
International RelationshipsEN 10225:2009
Draft Superseded By08/30190326 DC
DescriptorsOffshore construction works, Maritime structures, Structural steels, Weldability, Thickness, Sheet materials, Sections (structures), Metal sections, Hollow sections, Seamless pipes, Pipes, Dimensional tolerances, Chemical composition, Tensile strength, Yield strength, Elongation, Impact strength, Surfaces, Inspection, Testing, Marking
ICS77.140.10
Title in FrenchAciers de construction soudables destinés à la fabrication de structures marines fixes. Conditions techniques de livraison
Title in GermanSchweißgeeignete Baustähle für feststehende Offshore-Konstruktionen. Technische Lieferbedingungen
CommitteeISE/103
ISBN978 0 580 64623 2
PublisherBSI
FormatA4
DeliveryYes
Pages80
File Size2.149 MB
Price£218.00


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