Charpy impact tests must now be in the transverse direction for all plate grades.
The standard ensures that the steel used in these harsh environments possesses not only the required strength and yield points but also very high toughness and good weldability. Steels produced to EN 10225-1 offer improved properties compared to conventional structural steels from the EN 10025 series.
For a full copy, you can find the BS EN 10225-1:2019 document at or through official bodies like the British Standards Institution (BSI) .
: The standard focuses on steel grades that offer high strength and, in some cases, resistance to corrosion, which is crucial for applications in harsh environments. en 102251 pdf
EN 10225 series steels offer compared to conventional EN 10025 structural steels for offshore environments :
Understanding the EN 10225-1 PDF Standard for Offshore Structural Steels
: Specifies that pipes and hollow sections must undergo inspections and tests to ensure they meet the standard's requirements. Charpy impact tests must now be in the
The 2019 update increased allowable plate thicknesses. For example, can now be up to
The supplier provided the contractor with a batch of steel plates that conformed to EN 10225-1:2019. The plates were made from fine-grain steel, which offered excellent weldability and resistance to cracking.
| Property | EN 10025‑2 (S355) | EN 10225‑1 (S355NLO) | |----------|-------------------|----------------------| | Minimum impact test temperature | –20 °C | –40 °C | | Maximum thickness (common) | 100 mm | 200 mm | | CEV limit (t > 40 mm) | 0.45 | 0.43 | | Z‑direction properties | Optional | Readily available | | Non‑destructive testing | Basic | Enhanced (UT on all plates) | | Weldability at high heat input | Limited | Designed for high heat input | For a full copy, you can find the
| Country | Standards Body | Relevant Standard | |---------|---------------|-------------------| | | BSI | BS EN 10225‑1:2019 (ISBN 978 0 580 95356 9) | | Germany | DIN | DIN EN 10225‑1:2019‑11 | | France | AFNOR | NF EN 10225‑1:2019 | | Europe | CEN | EN 10225‑1:2019 | | International | ISO (via CEN) | Not an ISO standard — European standard only |
: Foundations driven directly into the marine bed for offshore wind turbines.
The standard is the primary European regulatory document governing the technical delivery conditions for weldable structural steel plates used in the fabrication of fixed offshore structures. This standard is critical for ensuring the structural integrity of offshore platforms, particularly in the demanding environments of the North Sea. Overview of EN 10225-1:2019