ArcelorMittal Flat Products produces a wide range of steel plates including grades with the most demanding qualities for offshore applications in the energy sector. With the ongoing improvements at ArcelorMittal Gijon (Spain), our offer to the offshore wind and oil & gas markets is set to expand with new feasibilities and the development of new grades. 

ArcelorMittal’s goal is to offer the most comprehensive range of plates for the offshore energy market. The steel plates we produce are typically utilized in the sub-sea and visible parts of offshore wind turbines, and oil & gas platforms.

Key facts

  • Leading producers in slabs, plates and coil materials
  • Key Suppliers for API / EN Heavy Offshore & Shipbuilding Grade Plates: Gijon (Spain), Burns Harbour & Coatesville (USA) and Industeel (France/ Belgium)
  • Facilities in France & Bremen (Germany) offer a comprehensive range of API Hot-Rolled Coils up to X80 PSL 2, including a thickness up to 25.4mm and a width up to 2,080mm
  • Supplies plate widths up to 4.9mtr. Supplied plate thicknesses are up to 350mm from Burns Harbour (USA), 760mm from Coatesville (USA) and up to 950mm from Industeel (France/Belgium)

Plate offer meets global standarts

The offshore plate grades produced by ArcelorMittal meet all relevant European (EN10225) and North American (API2W) standards. They are already utilized by leading manufacturers of offshore wind and oil & gas infrastructure. These facilities are operated by major energy producers around the world.

Two of the most common grades used in these segments are S355 M/ML and SS355MLO in thicknesses ranging from 40 to 70 mm. The ‘M’ in the grade name indicates that the steel has been thermo-mechanically rolled. The process changes the properties of the steel and makes it suitable for use in applications where high strength and excellent toughness at low temperatures are required. That includes a variety of offshore applications such as the topsides of oil and gas platforms, offshore wind substations, and the subsea ‘jackets’ which serve as foundations for offshore structures.

One of the key features of ArcelorMittal’s offshore plate offer is its enhanced weldability. This ensures the steel can be welded without affecting its high strength or excellent toughness.

Investments expanding feasibilities

Investments are ongoing in Gijon to expand ArcelorMittal’s offer for offshore energy. The goal is to produce grades for offshore applications in thicknesses over 50 mm. Improvements have already begun and some of the new feasibilities are expected to become available during 2022.

On the service side, ArcelorMittal has established a working group including representatives from ArcelorMittal Projects, Flat Products, and Global R&D. The group aims to qualify ArcelorMittal’s plate mills with more of the world’s major wind energy and oil and gas producers. As the group works closely with customers through co-engineering projects, it also recommends topics for research and development to anticipate future market requirements and meet new customer needs.

New products in development

A key concern for offshore customers is corrosion. ArcelorMittal Global R&D is constantly developing new products which make offshore structures lighter, and reduce operational costs by improving corrosion resistance. To ensure their suitability for marine applications, these steels typically undergo field trials in harsh, real-world environments.

Worldwide coverage with suppliers in India and China

Besides the producers above, Energy Projects works closely with producers in India and China to ensure seamless supply of flat products worldwide. 

AM/NS India

AM/NS India is an integrated flat carbon steel manufacturer. A joint venture between ArcelorMittal and Nippon Steel.

AM/NS India manufactures flat steel, steel plates, and steel pipes mainly at its integrated steel mill with a nominal crude steel production capacity of 9.6 million tonnes per year in India.

The company is known for the high quality of its flat steel products and supply to customers both in India and abroad.

Xiangtan Iron and Steel Company (China)

Hunan Valin Xiangtan Iron and Steel Company is part of Hunan Valin Iron & Steel Group, which is a large-sized enterprise set up by three steelmakers in Hunan province.

Hunan Valin Xiangtan Iron and Steel Company has a yearly production of 5 million metric tonnes of plates. It manufactures Q&T, Normalized & TMCP plates with lengths from 6m to 20m, widths 1.5m to 4.8m and thicknesses from 6mm to 120mm