- ArcelorMittal's best in class product for corrosion resistance is Magnelis® metallic coated steel. It is THE solution to corrosion in the harshest environment, even for deformed parts. The specific composition of Magnelis® (3% Mg and 3.5% Al) is the key element which ensures a stable and durable layer across the entire surface and self-healing characteristics for edges, scratches, and perforations.
- Indaten® for flat products and Arcorox® for sections are weathering steels developed by ArcelorMittal. Weathering steels are well known as corrosion resistant steels thanks to the addition of copper during manufacturing. Corrosion resistance can be improved even further by using phosphorous with the exception of the structural heavy plate to avoid iron phosphide (FeP3).
- Granite® HDXtreme, Granite® Storm, & Solano® organic coated steels have excellent corrosion resistance up to RC5 and are ideal for external usage in severe environments for components such as profiles and sandwich panels for roofing and cladding. They are also suitable for roofing applications such as tiles, guttering, and rainwater systems.
- Sheet piles can be delivered with a specific coating adapted to marine environment and soil conditions.
Related news and technical articles
SiloMasters’ grain silos incorporate Magnelis® from ArcelorMittal23 November 2021
Innovation in grain silo design: SiloMasters, renowned maker of agricultural storage solutions, has introduced Magnelis®, a high protection coated steel, into its grain silo range.Product News
Outstanding standing seam roofs with Granite® HFX Cool Matt and Magnelis®20 October 2021
Across Europe, standing seam roofs are a key feature in the landscape of many cities and towns. Made from flexible metals, they are an ideal solution for the odd-shaped roofs of apartment blocks and public buildings where every millimetre of space under the roof is utilised. The standing seam provides a high level of resistance to wind and excellent watertightness, making it a popular roofing solution today. Organic coated steels such as the Granite® HFX Cool range from ArcelorMittal Europe – Flat Products offer the necessary pliability, combined with a hard-wearing finish that is guaranteed for up to 20 years. Bevego, a leading provider of roofing solutions and equipment for the Swedish market, recently started utilising the latest product in the range – Granite® HFX Cool Matt.Product News
Steel Construction Institute reports on Magnelis® ZM120 corrosion protection7 October 2021
A report from the Steel Construction Institute (SCI) describes their independent review of the performance of the Magnelis® ZM120 coating for corrosion protection. An innovative metallic coating that offers protection in the harshest environments, Magnelis® is a ZM (zinc-aluminium-magnesium) coating in accordance with EN 10346:2015.Product News
ArcelorMittal launches RailCor®: a new range of corrosion resistant rails4 May 2021
In March 2021, ArcelorMittal Europe – Long Products launched RailCor®, a completely new range of corrosion resistant rails to protect from severe corrosion environments no matter whether the rails: are installed inside tunnels, city centres, or coastal areas; face demanding corrosion challenges; or fight specific corrosion produced by stray currents - or even to protect the rails during shipment.Product News
Magnelis® helps Meko Metal create durable profiles27 April 2021
Based in Turkey, Meko Metal is a leading advocate for Magnelis®, actively promoting the highly advanced coating with its global customer base. Meko Metal uses Magnelis® to create profiles and tubes which are utilised in: solar support structures; greenhouses; agricultural applications such as chicken farms; prefabricated housing; and heating, ventilation, and air conditioning (HVAC) applications. To ensure that their customers can access Magnelis® quickly, Meko Metal maintains its own high stock levels of the coated steel in Turkey.Product News
ArcelorMittal Europe has extensive experience and knowledge of developing and offering best in class products and solutions for corrosion resistant steels in the harshest environments.
Corrosion is an electrochemical process where an electrochemical cell is created consisting of an anode, which is depleted to the benefit of a cathode. In practice, cells are formed as soon as a lack of surface uniformity appears creating anode and cathode areas whereby water acts as the electrolyte. In these cells, the steel will corrode each time it becomes the anode, but when it is the cathode, it will remain intact. Corrosion phenomena occur under the action of a corrosive medium and finally lead to erosion of the material.
When it comes to steel, the result may be the visible corrosion product known as rust, which may cause deterioration of the external appearance, and finally, lead to the loss of performance capacity of steel members as well as damage other components.
Magnelis® after 34 weeks of exposure
Table below: Classification of ambient conditions (ISO EN 12994-2)
Magnelis® in agriculture applications
The risk of corrosion depends on the environment in which a material is utilised. The corrosion risks of different ambient conditions have been classified in the ISO EN 12994 standard. The classifications start at C1 (non-aggressive environment) and go up to C5 (most aggressive). Distinctions are made between indoor and outdoor environments.