s355mlo-s355ml offshore material

Offshore Steel with Confidence – Universal Steel

Universal Steel specializes in the supply of high-quality offshore structural steel for demanding projects worldwide. We provide beams and plates in grades such as S355ML, S355MLO, S420MLO, and S460MLO, fully aligned with the requirements of offshore, energy, and heavy industrial applications.

Offshore projects require steel you can rely on — capable of withstanding extreme loads, low temperatures, dynamic forces, and strict inspection standards. That is exactly where our expertise lies.

Specialized in Offshore Grades (EN 10225-2)

We supply structural steel in accordance with EN 10025-4 (thermomechanically rolled), including offshore variants with enhanced quality assurance:

• S355MLO

• S420MLO

• S460MLO

Our steel is dual-certified to EN 10025-4, including S355ML / S460ML & S420ML.

These grades are known for:

• Excellent low-temperature toughness

• High weldability

• Consistent mechanical properties

• Suitability for offshore and marine structures

The “O” (Offshore) designation indicates compliance with additional requirements such as:

• Stricter impact testing

• Improved material cleanliness

• Enhanced reliability for critical applications

Beams, Channels and Plates – Complete Supply

Universal Steel offers a wide range of offshore steel products, including:

• Plates (cut to size or as rolled)

• Beams and structural sections
  1 Beams in European sizes, HEB 100 untill HEB 1000, HEA 100 untill HEA 1000, HEM 100 untill HEM 1000 and UPN (UNP) 100 untill UPN (UNP)600.

• Project-based deliveries to fixed specifications

Available with:

• EN 10204 3.1 or 3.2 certificates

• Additional inspections (UT, impact tests, NDT)

• Project-specific documentation packages

Why Choose Universal Steel?

✔ Offshore focus – specialists, not bulk traders
✔ Technical expertise – we speak the engineers’ language
✔ Reliable sourcing – only from reputable mills
✔ Flexible logistics – aligned with project schedules
✔ Fast response – short lines and clear communication

We actively support you in selecting the right steel grades, availability, and specifications — ensuring your project stays on track.

Strategic Stock Locations & Fast Project Preparation

To ensure fast and reliable delivery, Universal Steel maintains stock at strategic locations worldwide:

Antwerp – centrally positioned for Europe and North Sea offshore projects

Singapore – a key logistics hub for Asia-Pacific and international offshore projects

By holding stock in these major logistics hubs, we can significantly reduce lead times and respond quickly to urgent project demands.

In addition to stock availability, we offer fast material preparation, including:

• Cutting to size

• Beveling and edge preparation (Universal Steel can arrange this with external partners)

• Project-specific marking and packaging

• Documentation and inspection coordination

This allows our clients to receive steel that is ready for immediate processing or installation — saving time and minimizing downtime on site.

Applications

Our offshore steel grades are widely used in:

• Offshore platforms and jackets

• Foundations for offshore wind farms

• Subsea structures

• Heavy steel construction and energy infrastructure

Looking for offshore steel in S355ML, S355MLO, S420MLO, or S460MLO?
Universal Steel is your trusted partner from inquiry to delivery.

EN 10025-4 S355ML Structural Steel – High Performance Steel for Offshore and Heavy Industry

EN 10025-4 S355ML is a thermomechanically rolled structural steel grade designed for demanding applications where high strength, excellent toughness, and reliable performance at low temperatures are essential. This steel grade is widely used in offshore structures, marine applications, wind energy projects, pressure-bearing constructions, and heavy industrial frameworks.

At Universal Steel, we supply EN 10025-4 S355ML plates and structural sections sourced from reputable mills and fully compliant with European standards.

Key Properties of EN 10025-4 S355ML Steel

S355ML is characterized by its outstanding mechanical and metallurgical performance:

• Minimum yield strength of 355 MPa

• Excellent impact toughness at low temperatures (typically tested at -50°C)

• High weldability without the need for extensive preheating

• Uniform and consistent mechanical properties across thickness ranges

• Enhanced resistance to brittle fracture

Thanks to the thermomechanical rolling process (TMCP), S355ML offers superior strength-to-weight performance, making it ideal for large-scale structural projects.