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Magnelis® structural steel grades

Magnelis® structural steel grades include: S350GD, S390GD, S420GD-HyPer®, S450GD-HyPer®, and S550GD-HyPer®.

These metallic coated structural steels are mainly used in construction, road and railway infrastructure, agriculture and farming, solar energy generation, and tubular applications.

Magnelis® is a flat carbon steel product coated on both sides with a zinc-aluminium-magnesium alloy. This alloy, composed of 93.5% zinc, 3.5% aluminium, and 3% magnesium, is applied by means of a continuous hot dip galvanising process. This optimum chemical composition has been selected to provide the best results in terms of corrosion resistance.

Indaten® structural weathering steel grades

Indaten® S355W structural weathering steel grades are fine grain, high strength structural steels offering high yield strength and improved corrosion resistance in specific aggressive environments. These grades have excellent weldability with all the usual welding processes because of their low carbon content and fine grained structure.

When used uncoated and exposed to bad weather, an oxide layer develops on the steel surface, forming a purplish-brown, finely grained patina that bonds very strongly to the steel and protects it. With their characteristic colour, steels with improved atmospheric corrosion resistance are used in architectural projects like bridges either to harmonise with the environment or to optimise maintenance costs all along the construction life cycle.

Text: Constructalia, ArcelorMittal Europe
Images: ArcelorMittal Europe Flat / PLP, ArcelorMittal Europe, Jannes Linders

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Indaten®

Indaten® cladding sheets

Steel grade S450GD+ZM100 Magnelis used for long span decking application

Steel grade S450GD+ZM100 Magnelis used for long span decking application - Proliling on the line

Magnelis: High strength steel for long span decking - profiling on line

Magnelis: High strength steels coil for long span decking application

The Research Institute of Sweden has renewed its certification of Magnelis® ZM 310 and its use as corrosion protection for steel sheets for indoor and outdoor applications. Its use is suitable for corrosivity class C5 according to the SS-EN ISO 12944-2 described class based on a deemed expected lifetime of 15 years.

This 'Type Approval and decision on production control' certification from RISE can be downloaded from our Document library.

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Magnelis®

Magnelis® ZM 310 certification by Research Institute of Sweden

RISE certification cover

Australian company InQuik has developed a unique method of building bridges which can be implemented quickly using only low-skilled labour. The globally patented technology utilises Magnelis® from ArcelorMittal Europe – Flat Products to create the formwork of a bridge, which is then filled with concrete to create the bridge deck. Although the bridges are designed for a service life of 100 years, experts believe that the use of Magnelis® could double that without the need for significant maintenance. With hundreds of thousands of bridges needing replacement around the world, the potential for the InQuik system is enormous. The innovative design of the InQuik system was recognised when it won the 2019 T.C. Graham Prize from the Association for Iron & Steel Technology (AIST).

The InQuik system

The InQuik system was developed by a family team including father and son Bruce and Logan Mullaney and Bruce’s brother-in-law, Jim Howell. Their original goal was to improve the systems used to transport modular housing with a collapsed container system. “When we went to register our idea of a reinforcement to hold the deadweight of concrete, the patent office told us this was completely new,” explains Logan Mullaney, now managing director of InQuik Bridging Systems. “We immediately started to think of other ways we could utilise this technology.”

With demand for bridges soaring globally, they seemed to be an ideal application notes Logan Mullaney: “We realised that by putting a truss in a reinforced steel shell we could hold the temporary load of the cement until it cured. Our first trial bridge was constructed on our own property in Australia. We built three in the first year and eight in the second year. This year, our third, we will install around 40 InQuik bridges.”

Magnelis® provides long-term strength

A key challenge was to identify a good material for the formwork which holds the concrete until it dries completely. “At first we thought about using galvanised steel, but over time this will rust and fall away,” says Logan Mullaney. “While the formwork is sacrificial, we realised that the sight of corroding metal would reduce user confidence in the bridge and increase the amount of maintenance required. We needed a more durable solution.”

InQuik was introduced to Magnelis® through a contact in Australia. “Magnelis® allows us to leave the formwork of the bridge in place as it has an aesthetically pleasing finish – and it is durable,” says Logan Mullaney.

Another key advantage of Magnelis® is the protection it offers to the concrete deck. “Because the formwork remains, the concrete and internal reinforcing steel are protected from corrosion,” explains Logan Mullaney. “That means the bridge will last longer. Engineers have estimated the useful life of an InQuik bridge could be well in excess of its 100-year design life, potentially up to 200 years.”

Confidence in quality

The Magnelis® formwork helps to contain plasticisers and water-soluble chemicals which occur in the concrete. Magnelis® ensures the preservation of natural resources as it uses significantly less zinc than pure zinc coatings. Zinc runoff is also reduced dramatically compared to galvanised steels.

“Magnelis® is not well known in Australia and we are one of the only companies utilising it,” notes Logan Mullaney. “But ‘Made in Europe’ is a quality label for Australian companies. Together with the fact that ArcelorMittal is the largest steelmaker in the world, this gives our customers – and bridge users – confidence in the system.”

Portable technology can be deployed globally

Magnelis® is imported into Australia from ArcelorMittal Bremen where it is produced. InQuik maintains a healthy stock in Australia as there is currently a four-month lead time on orders. “We’re looking how that lead time can be reduced so InQuik doesn’t have to maintain such a large stock of material,” notes John Robbins, export manager for ArcelorMittal Europe – Flat Products.

Compared to a conventional reinforced concrete bridge, the InQuik system is up to 90 percent more steel-intensive. However, the bridges are more cost-effective as they can be prefabricated and installation time is significantly lower explains Logan Mullaney: “InQuik bridges are standardised, pre-certified, and can be mass-produced. And it is possible to transport an entire bridge on one semi-trailer. You just back the truck up to the site, install the components, and then fill them with concrete. It only takes a small crane and a few days to build the bridge. Customers typically save between 20 and 50 percent compared to a conventional bridge due to the lower installation time and work, low risk, and less cranage.”

About InQuik Bridging Systems

InQuik manufactures standardised, pre-certified, mass-produced bridges which can be easily transported anywhere in the world. The solution makes building a bridge quick, simple, low-risk, and cost-effective. InQuik employs 15 people in its sales and delivery team and produces systems at three factories in Australia. InQuik is currently preparing for expansion into the USA, Asia, and other regions around the globe.

More info: inquik.com.au

The T.C. Graham Prize

The T.C. Graham Prize has been awarded annually since 2014 to the winners of the Association for Iron & Steel Technology’s (AIST) annual design competition. The winning entry receives a 20 000 USD cash prize. The purpose of the contest is to encourage, generate, and incubate ideas that may lead to the development of new markets for steel.

More info: www.aist.org

Text: ArcelorMittal Europe Communications
Images: InQuik Bridging Systems & AIST

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InQuik receiving the T.C. Graham Prize

InQuik bridge

InQuik bridge under construction

InQuik deck trays and abutments being delivered

InQuik bridge components are prefabricated

Magnelis® in the formwork of the InQuik bridge system

InQuik Bridging Systems logo

InQuik bridge

InQuik

The installation of more than 27 000 solar panels on the roof of ArcelorMittal in Ghent has been completed, resulting in the largest solar roof in Belgium. Installed by Eneco, this is their largest project to date making ArcelorMittal Belgium even more sustainable. The power generated will be used internally by ArcelorMittal in Ghent. The panels are fixed on a framework made of steel coated with Magnelis®. The Magnelis® steel, produced at our production site in Liège among others, is a strong illustration of sustainability.

The largest solar roof in Belgium

Eneco - the largest solar energy producer in Belgium - installed this 7.5 million Euro solar roof. The park consists of 27 104 solar panels for which 157.2 t of steel was used. The total weight of the installation amounts to 1.5 million kilos. This means that ArcelorMittal now owns the fourth largest solar park in Belgium and the largest solar roof in Belgium.

Supporting the move to clean energy

ArcelorMittal supports the move to clean energy generation by offering high-performance steels, advanced metallic coatings, and structural solutions for PV and solar thermal installations. We also offer tailormade services such as co-engineering and full project handling.

Reinforcing the sustainability strategy

The new solar panels at ArcelorMittal in Ghent will produce 10 000 MWh annually, equal to the energy consumption of 2900 households. The solar panels, together with the site’s current 10 wind turbines and the two additionally planned wind turbines, will soon provide approximately 50 MW of renewable power to the Ghent site. The sustainable energy that is generated is used entirely internally to feed the production of ArcelorMittal in Ghent.

Today, ArcelorMittal Belgium is a world-leader in energy efficiency and reducing CO2 emissions. With this investment, the company reinforces the implementation of its sustainability strategy. ArcelorMittal Belgium follows the climate agreement of Paris. The site’s emissions are already 25% lower than in 1990, which is 20% better than what the Paris climate agreement demands. By 2027, ArcelorMittal Belgium aims to produce 43% fewer emissions, with the ambition of being carbon neutral by 2050.

Manfred Van Vlierberghe, CEO of ArcelorMittal Belgium, states that: “The renewable energy generated by these 27 104 solar panels supports us in achieving our ambition to be climate-neutral by 2050. We’re fully committed to this ambition and excited to launch Belgium’s largest solar roof. Alongside our soon to be installed additional wind-turbines, we’re again taking steps in the right direction. In addition, the new solar panels are also a good example of the importance of steel in our daily lives.”

Fast growing energy vision within Ghent industry

The initiative of ArcelorMittal Belgium and Eneco is in line with the Flemish Government’s Energy Vision for 2021 – 2030. This Energy Vision states that energy consumption must be significantly reduced and that the industry must be 10% more energy efficient by 2030.

“Large renewable energy projects such as those at ArcelorMittal Belgium are necessary in order to put in place a real energy transition. It makes a big difference to a company’s energy bill, but also to the achievement of the renewable energy targets in Flanders. Many companies in the Ghent port area realise that this change of our mindsets is crucial, and we are therefore pleased to see that the concrete implementation of the Energy Vision is being taken seriously.” ~Lydia Peeters, Flemish Deputy Prime Minister and Flemish Minister of Finance, Budget, Energy, & Culture

“I am pleased that ArcelorMittal continues to focus on the reduction of CO2 reduction and energy efficiency. The investment in this new solar park is one of their projects to achieve the ultimate goal of becoming carbon-neutral by 2050. In this way, our industry is working towards a sustainable and climate-neutral society.” ~Koen van den Heuvel, Flemish Minister of the Environment, Nature, and Agriculture

“The city of Ghent and the North Sea Port are committed to renewable energy, CO2 reduction, and reuse. By installing solar panels and solar parks in the cross-border port area, like at ArcelorMittal in Ghent, the port companies are generating renewable energy, which is injected into the electricity grid accounting for the equivalent of more than 31 000 households. In this way, our port is increasingly becoming a sustainable energy port, and together with all port companies, we are building a climate-neutral city by 2050.” ~Mathias De Clercq, mayor of the city of Ghent

ArcelorMittal Belgium continues to work on similar projects at its sites in Liège, Genk, and Geel.

About Eneco

Eneco Belgium is a sustainable energy company that focuses on the production and supply of gas and electricity from renewable sources such as solar and wind. Eneco is a leading player in the supply and production of renewable energy and one of the largest players in the wind sector with more than 1000 MW of renewable production capacity in Belgium, the Netherlands, Germany, and the United Kingdom. Eneco has been active on the Belgian consumer market since 2011 and has the ambition to supply 100% renewable energy generated on Belgian soil through 96 wind turbines and, currently, 295 000 solar panels. The company also focusses on energy efficiency through insulation projects, solar panels, energy storage, electric charging stations, and other innovative products and services.

More info here: Eneco

Text: ArcelorMittal Europe Communications, ArcelorMittal Corporate Communications, Constructalia

Photos: ArcelorMittal Europe

Videos: ArcelorMittal Europe Communications, ArcelorMittal, Eneco

Related link(s)

Solar roof - ArcelorMittal Gent

Solar roof - ArcelorMittal Gent

ArcelorMittal Ghent solar roof timelapse video

Applications in solar with Magnelis®