本文件规定了固定式海洋结构物制造中使用的埋弧焊接（SAW）和高频焊接（HFW）冷成型空心型材的要求。SAWL圆形空心截面的厚度限制为50.8 mm（含50.8 mm），HFW圆形空心截面的厚度限制为25.4 mm（含25.4 mm），HFW方形和矩形空心截面的厚度限制为12.5 mm（含12.5 mm）。如果保持本欧洲标准的技术要求，则可以商定锯木空心型材的更大厚度。注1:本文件附件E适用于厚度限制为30.0 mm的锯切圆形空心型材，附件F适用于S500至S700级钢制高强度方形和矩形HFW空心型材。本欧洲标准适用于设计用于海上作业的海洋结构物用钢，但不适用于为制造海底管道、立管、工艺设备、工艺管道和其他公用设施而供应的钢。它主要适用于北海地区，但也可能适用于其他地区，前提是适当考虑当地条件，例如设计温度。注2:本文件有一个关于北极地区固定式海洋结构物钢材资格预审的资料性附录G。最低屈服强度高达700兆帕，并规定了在-40°C温度下的冲击性能。注3:本标准规定了一系列材料等级，用户可选择最适合预期用途及其使用条件的等级。

This document specifies requirements for submerged arc welded (SAW) and high frequency welded (HFW) cold formed hollow sections to be used in the fabrication of fixed offshore structures. The thickness limit for SAWL circular hollow sections is up to and including 50,8 mm, for HFW circular hollow sections up to and including 25,4 mm and for HFW square and rectangular hollow sections up to and including 12,5 mm. Greater thicknesses for SAWL hollow sections can be agreed provided the technical requirements of this European Standard are maintained. NOTE 1 This document has an Annex E for SAWH round hollow sections with a thickness limit of 30,0 mm, and an Annex F for high strength square and rectangular HFW hollow sections made of steel grades S500 to S700. 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 2 This document has an informative Annex G on the prequalification of steels for fixed offshore structures in arctic areas. Minimum yield strengths up to 700 MPa are specified together with impact properties at temperatures down to -40 °C. NOTE 3 A range of material grades is specified in this standard and the user can select the grade most appropriate to the intended use and its service condition.