EN10225-S355MLO、S420ML wind turbine tower steel plate
EN10225-S355MLO、S420ML plates are high-strength structural steel materials designed for wind turbine towers. We provide certified industrial supply.
1. Excellent Weldability and Toughness
2. Wide Range of Grades and Thicknesses
3. Compliant with Global Standards
EN10225-S355MLO、S420ML wind turbine tower steel description
We are a leading China-based manufacturer and bulk exporter of S355MLO and S420ML steel plates, compliant with EN 10225 standards. These high-strength, low-alloy structural steels are specially designed for offshore wind turbine towers and marine structures, offering excellent weldability, impact toughness at low temperatures, and corrosion resistance.
Key Features:
Grades Available: S355MLO, S420ML (other grades on request)
Thickness Range: 10mm to 120mm (custom sizes available)
Certifications: EN 10225, CE, PED, and other international standards
Applications: Offshore wind turbine foundations, substations, heavy-load structures
Advantages: High fatigue resistance, superior notch toughness (-40°C to -60°C), and optimized for large-scale fabrication
Ideal for wind energy EPC contractors, offshore fabricators, and renewable energy projects requiring durable, high-performance steel plates.
EN10225-S355MLO、S420ML-Chemical Composition/Tensile Requirements
| EN10225-S355MLO、S420ML Chemical Composition | ||
| Element | S355MLO (Max %) | S420ML (Max %) |
| C | 0.16 | 0.18 |
| Si | 0.5 | 0.5 |
| Mn | 1.6 | 1.7 |
| P | 0.025 | 0.025 |
| S | 0.01 | 0.01 |
| Cu | 0.3 | 0.3 |
| Ni | 0.5 | 0.8 |
| Cr | 0.3 | 0.3 |
| Mo | 0.1 | 0.1 |
| V | 0.06 | 0.06 |
| Nb | 0.05 | 0.05 |
| Ti | 0.03 | 0.03 |
| Al (total) | 0.06 | 0.06 |
| N | 0.012 | 0.012 |
| CEV (IIW) | ≤ 0.43 | ≤ 0.45 |
| EN10225-S355MLO、S420ML – Tensile Requirements | ||
| Property | S355MLO | S420ML |
| Yield Strength (ReH, MPa) | ≥ 355 | ≥ 420 |
| Tensile Strength (Rm, MPa) | 470 – 630 | 520 – 680 |
| Elongation (A₅, %) | ≥ 20 | ≥ 18 |
| Impact Energy (KV, J) | ≥ 40 (-60°C) | ≥ 40 (-60°C) |
| Bend Test | No cracks at 180° | No cracks at 180° |
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EN10225-S355MLO、S420ML wind turbine tower steel Application
EN10225-S355MLO / S420ML steel plates are specifically designed for demanding offshore wind turbine tower applications, offering exceptional strength, toughness, and fatigue resistance. In the wind energy sector, these plates are the preferred choice for fabricating offshore wind turbine towers, providing structural integrity under extreme wind loads and harsh marine environments. Their low-temperature impact properties ensure reliability in cold climates, while their high weldability simplifies on-site assembly and maintenance.
For offshore substations and transition pieces, S355MLO/S420ML plates deliver robust performance against saltwater corrosion and cyclic stresses. The oil & gas industry also utilizes these grades for offshore platform components requiring high strength-to-weight ratios. Additionally, their consistent mechanical properties make them suitable for heavy-load bearing structures in marine engineering and coastal infrastructure projects.
With stringent EN10225 certification, these plates meet the rigorous demands of EPC contractors and renewable energy manufacturers, ensuring long-term durability and safety in sustainable energy projects worldwide.
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EN 10225-S355MLO / S420ML Wind Turbine Tower Steel Plate FAQs:
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