Marzouk Steel is a trusted manufacturer and supplier of high-quality S355JO+N Steel Sheets and Plates in Tunis, Tunisia. Known for strength, reliability, and consistency, these structural steel products are designed to meet demanding engineering and construction requirements. Manufactured in compliance with EN standards, S355JO+N steel offers excellent weldability, good toughness, and dependable performance under normal and low-temperature conditions. Marzouk Steel ensures strict quality control, precise dimensional accuracy, and dependable supply, making these sheets and plates a preferred choice for infrastructure, fabrication, and heavy-duty industrial projects across local and regional markets.
S355JO+N steel is a non-alloy structural steel with a balanced chemical composition of carbon, manganese, silicon, phosphorus, and sulfur within controlled limits. This composition provides a minimum yield strength of 355 MPa, along with high tensile strength and excellent impact resistance. The “+N” normalization process refines the grain structure, improving toughness and mechanical stability. S355JO+N steel sheets and plates offer good elongation, high load-bearing capacity, and superior weldability, making them suitable for demanding structural and mechanical applications.
Item : S355JO+N – 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+N Steel Plate
Technique : hot rolled
Standard : EN 10025-2:2004
C | Si | Mn | P | S | N | Cu | CEV |
0.22 max | 0.55 max | 1.6 max | 0.035 max | 0.035 max | 0.012 max | 0.55 max | 0.47 max |
| Nominal thickness (mm): |
to 3 |
3 – 100 |
100 – 150 |
150 – 250 |
– |
– |
– |
– |
| Rm – Tensile strength (MPa) Flat and long products |
510-680 |
470-630 |
450-600 |
450-600 |
– |
– |
– |
– |
| Nominal thickness (mm): |
to 16 |
16 – 40 |
40 – 63 |
63 – 80 |
80 – 100 |
100 – 150 |
150 – 200 |
200 – 250 |
| ReH – Minimum yield strength (MPa) Flat and long products |
355 |
345 |
335 |
325 |
315 |
295 |
285 |
275 |
|
KV – Impact energy (J) longitud., |
-20° |
0° |
+20° |
– |
– |
– |
– |
– |
|
27 |
27 |
27 |
– |
– |
– |
– |
– |
|
|
Nominal thickness (mm): |
Mar-40 |
40 – 63 |
63 – 100 |
100 – 150 |
150 – 250 |
– |
– |
– |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
S355JO+N steel sheets and plates are widely used in structural and load-bearing applications where strength and durability are critical. Common uses include bridges, buildings, offshore structures, industrial frameworks, and heavy fabrication projects. They are also extensively applied in pressure vessels, storage tanks, cranes, shipbuilding, and transport equipment. Due to their excellent weldability and impact resistance, these steel products are ideal for environments exposed to dynamic loads and low temperatures. Their versatility and reliability make S355JO+N steel a preferred material across construction, engineering, and manufacturing industries.
Marzouk 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 Tunis, Tunisia.
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