NA 021

DIN Standards Committee Iron and Steel

Project

Weldable structural steels for fixed offshore structures - Technical delivery conditions - Part 3: Hot finished hollow sections

Abstract

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.

Begin

2021-09-27

WI

EC103126

Planned document number

EN 10225-3/FprA1

Responsible national committee

NA 021-00-04-03 UA - Steels for offshore-structures  

Responsible european committee

CEN/TC 459/SC 3/WG 8 - Steels for fixed offshore structures  

draft standard

Weldable structural steels for fixed offshore structures - Technical delivery conditions - Part 3: Hot finished hollow sections
2022-04
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Weldable structural steels for fixed offshore structures - Technical delivery conditions - Part 3: Hot finished hollow sections
2023-01
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previous edition(s)

Weldable structural steels for fixed offshore structures - Technical delivery conditions - Part 3: Hot finished hollow sections
2019-05

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Contact

Dr.-Ing.

Günter Briefs

Sohnstr. 65
40237 Düsseldorf

Tel.: +49 211 6707-434
Fax: +49 211 6707-420

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