S355JO Steel Sheets and Plates are high-strength, low-alloy structural steels known for their excellent toughness, weldability, and consistent performance under varying temperature conditions. The “JO” designation indicates that this grade provides reliable impact resistance at 0°C, making it suitable for projects exposed to moderate climatic environments. S355JO Sheets and Plates are commonly used in structural construction, heavy engineering frameworks, and machinery parts that require strength, stability, and long-term durability. Their smooth surface finish and uniform mechanical properties ensure ease of fabrication, cutting, and forming, reducing production challenges. With their ability to handle dynamic loads and stresses, these plates are trusted across construction, transportation, fabrication, and industrial applications.
S355JO Steel is primarily composed of iron with controlled percentages of carbon, manganese, silicon, phosphorus, and sulfur, along with trace micro-alloying elements that enhance toughness and strength. It offers a minimum yield strength of 355 MPa, providing excellent load-bearing capability. The steel also demonstrates good tensile strength and elongation, contributing to its flexibility during forming and welding. The “JO” impact test classification ensures reliable toughness at 0°C, making it suitable for structural environments where moderate temperature variations occur. These mechanical characteristics provide durability, stability, and dependable structural performance.
Item : S355JO – Offshore & Structural Steel Plate
Thickness : 5mm-150mm
Width : 1000mm-4500mm
Length : 3000mm-18000mm or as custom’s request
Material : En 10025-2 Steel Plate, S355JO Steel Plate
Technique : hot rolled
Standard : EN 10025-2:2004
| C max. % | Mn max. % | Si max. % | P max. % | S max. % | N max. % | Cu max. % | Other max. % | CEV max. % | ||||
| Nominal thickness mm | Nominal thickness mm | |||||||||||
| ≤16 | >16 ≤40 | >40 | ≤30 | >30 ≤40 | >40 ≤125 | |||||||
| 0,20 | 0,20 | 0,22 | 1,60 | 0,55 | 0,035 | 0,035 | 0,012 | 0,55 | – | 0,45 | 0,47 | 0,47 |
| Thickness (mm) | Yield Strength Reh min (N / mm²) | Tensile Strength Rm min (N / mm²) | Elongation A5 min (%) | Impact Values Charpy-V-Notch Longitudinal Average from 3 Speimens Thk. >10<150mm. |
| 3<thk<100 | 315-355 | 490-630 | max 22 | 27 Joules at -20 C |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
S355JO Steel Sheets and Plates are widely used in structural engineering and construction projects, including building frames, bridges, platforms, and support beams that require strong and stable materials. In industrial fabrication, they are used to manufacture machinery frames, conveyor systems, storage tanks, and lifting equipment due to their excellent weldability and formability. The transportation industry utilizes S355JO for truck chassis, trailer bodies, and load-bearing frameworks because of its strength-to-weight efficiency. Additionally, it is used in civil infrastructure, such as pipelines, structural columns, and architectural elements requiring durability and long service life. Its performance under moderate temperatures and dynamic stresses makes it a dependable choice across multiple sectors.
Yoane Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kinshasa, Congo.
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