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Contact SupplierProduct Overview:
S355JO Plates are structural steel plates that conform to the EN 10025-2 standard, offering a minimum yield strength of 355 MPa and excellent mechanical properties. The “JO” designation indicates that these plates are tested for impact resistance at 0°C, ensuring reliability in moderately cold environments. They are widely used in structural applications across construction, engineering, and heavy fabrication industries.
🔍 Key Features:
High-strength structural steel with minimum 355 MPa yield
Excellent weldability and machinability
Impact-tested at 0°C (JO grade)
Low carbon equivalent for improved cold-forming ability
Suitable for bolted, welded, or riveted construction
📐 Technical Specifications:
| Grade | S355JO |
| Standard | EN 10025-2 |
| Thickness | 6 mm – 150 mm |
| Width | 1000 mm – 3500 mm |
| Length | 2000 mm – 14000 mm |
| Delivery Condition | As rolled / Normalized / TMCP |
| Certification | EN 10204 3.1 / 3.2, NACE MR0103 / MR0175 (if required) |
🧪 Chemical Composition (% Max):
| Carbon (C) | 0.20 |
| Manganese (Mn) | 1.60 |
| Silicon (Si) | 0.50 |
| Phosphorus (P) | 0.030 |
| Sulfur (S) | 0.030 |
| Nitrogen (N) | 0.012 |
🔩 Mechanical Properties:
Yield Strength (Min):
≤16mm: 355 MPa
16mm: 345 MPa
Tensile Strength: 470 – 630 MPa
Elongation: ≥ 20%
Impact Strength: 27J at 0°C (JO)
🏗️ Applications:
Building structures and industrial frameworks
Wind towers and crane booms
Offshore and marine structures
Bridges and flyovers
Mining equipment and material handling systems
General heavy fabrication
⚙️ Value-Added Services:
Oxy/Plasma/Laser Cutting
Bending and Drilling
Primer Coating
Ultrasonic Testing (UT)
Third-Party Inspection (TPI)
Custom Sizes & Lengths
🌍 Available Brands / Country of Origin:
SAIL / JSPL / ESSAR – India
Dillinger / ThyssenKrupp – Germany
SSAB – Sweden
ArcelorMittal – Europe